final - minicast - understanding network name resolution

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 System Builder Technology MiniCast Understanding Network Name Resolution It’s a BOB Thing

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Page 1: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 125

System Builder

Technology MiniCast

Understanding NetworkName Resolution

Itrsquos a BOB Thing

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 225

Name Resolution All communications between

computers and any other devices on a TCPIP networkare addressed using IPaddresses such asldquo192168152rdquo

Name resolution provides amethod of referring tocomputers by name instead of using network addresses

Windows has historically usedtwo separate naming

schemes host naming andNetBIOS naming Starting with the products

released at the time of Windows 2000 Microsoft hasbeen eliminating the need touse NetBIOS naming inMicrosoft networks

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 325

Host Name Resolution

DNS or the Domain Name Service providesname-to-IP address mapping enabling clients torefer to destinations by name rather than IP

addresses DNS has been the standard method of resolving

Windows Networking resources since Windows2000

The ldquohostsrdquo file provides local name resolutionfor TCPIP-based functions Located in ltsystemrootgtsystem32driversetc Can store any name-to-IP address mapping Contains 127001 ldquolocalhostrdquo mapping by default

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 425

Benefits of DNS

Scalable The service is appropriate for very large and very

small networks

InteroperableMicrosoftrsquos DNS server is RFC-compliant

Distributed DNS allows for the task of providing name-to-IP

address records for the Internet to be distributedamongst DNS servers eliminating the need for aldquomaster listrdquo catalog of all names

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 525

Important Terms Zone

A zone is a table of IP addressand name information used toanswer requests

More than one DNS server can store a copy of a zone for redundancy

Domain Unlike an Active Directory

domain in DNS the termldquodomainrdquo simply defines a

ldquonamespacerdquo Allows an individual to reservea section of the DNS namingstructure for use in creatingnew names

DNS domains are hierarchical

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 625

DNS Naming Structure

Becomes less specific as the name moves from left toright

Hostsubdomaindomaintopleveldomain ie wwwmicrosoftcom ()

There is a true top level least-specific domain in everyname called ldquorootrdquo represented by a dot that is nottyped

The first word of the name was traditionally the actualname of a host on a DNS network although a single IPaddress can be mapped to multiple names

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 725

DNS Client software Two types

Stub resolvers Built-in to all standard

TCPIP hosts

(computers) Capable of sending a

recursive request to aDNS server

Full resolvers

Built-in to DNS Serversand DNStroubleshooting toolssuch as nslookup

Capable of sendingeither a recursive or

iterative request

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 825

DNS Servers

Capable of storing IP address records for a zone Capable of answering both iterative and

recursive requests for records within zoneshosted locally on the DNS server ldquoAuthoritativelyrdquo

Capable of fulfilling recursive lookup requests on

behalf of clients Capable of forwarding a recursive lookup

request to another DNS server (a ldquoforwarderrdquo)

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 925

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1025

Types of Zones

Standard Primary Stores DNS records in a text file on the hard drive

Standard Secondary Retrieves a copy of the zone from another server and

uses the copy to answer requests Active-Directory Integrated

Stores zone information in Active Directory

Enables secure DDNS Stub zones

Retrieves a copy of the SOA and NS records fromanother server and uses the copy to refer lookupprocesses to the correct DNS servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1125

Forward and Reverse Lookups Forward Lookup Zones

Store information for name-to-IP address lookups Use the DNS name hierarchy for organizing zones

Reverse Lookup Zones Store information for IP address-to-name lookups Use the IP subnet structure for organizing zones

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1225

Record Types

ldquoArdquo or ldquoHostrdquo records Simple mapping of a name to IP address Can be created automatically using Dynamic DNS

ldquoCNAMErdquo or ldquoAliasrdquo records Allows a name to be mapped to an already existing

name

ldquoMXrdquo or ldquoMail Exchangerrdquo records Identifies the name or names of SMTP servers

capable of receiving SMTP mail for the domain name

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1325

Record Types

ldquoPTRrdquo or ldquoPointerrdquo Records Used in Reverse Lookup Zones to provide name information

when queried for an IP address

Can be created automatically using Dynamic DNS ldquoNSrdquo or ldquoName Serverrdquo Records

Shows the names of DNS servers for a zone

ldquoSOArdquo or ldquoStart of Authorityrdquo record Stores configuration information for how the zone operates Accessed through the SOA tab of a zonersquos properties in

Windows Server 2003 DNS servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1425

The SOA Record The Start-of-Authority

ldquoSOArdquo record is a keyelement of DNSconfiguration on all DNSservers

The Windows 2000 andWindows Server 2003versions of DNS use aGUI for configuring SOArecord properties

Settings placed in theSOA determine behaviorsfor copies of the zone onall secondary DNSservers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1525

Active Directory and SRV Records

ldquoSRVrdquo or ldquoService Locatorrdquo Records Used to store information about services needed for specialized

applications Used extensively by Active Directory authentication processes to

locate Domain Controllers and Global Catalog Servers

A separate zone called ldquo_msdcsltdomainnamegtrdquo iscreated to manage SRV records for Active Directory inWindows Server 2003 DNS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1625

Dynamic DNS

Allows clients to configure ldquoArdquoand ldquoPTRrdquo recordsautomatically

Can be used by serviceproviders to host a service onthe Internet without a static IPaddress

Can be used to create recordsfor all Active Directory domainmembers in DNS automatically

When used with ActiveDirectory-Integrated zonesDDNS may be secured so onlydomain members can createrecords

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1725

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1825

NetBIOS Names

Must be 15 characters or less

No case sensitivity

Often referred to as ldquocomputer namerdquo The ldquolmhostsrdquo file

A sample version is stored in

ltsystemrootgtsystem32driversetc with the name

ldquolmhostssamrdquo

Needed locate domain controllers for pre-Windows

2000 clients on routed networks without WINS

servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1925

WINS Servers

WINS Serversprovide a centrallookup andregistration point for NetBIOS names

Clients must beconfigured with WINSserver addresses inorder to use WINS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2025

WINS Server Replication

WINS is a multi-master

database

Two types of replication Pull replication

Configured to occur at

regular intervals

Push replication

Configured to occur after acertain number of changes

have been received

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2125

Name Resolution Troubleshooting

Ping Pinging a target by name will attempt hostname (DNS) resolution first

then NetBIOS (WINS) resolution if NetBIOS is enabled Whenever name resolution is failing ping the DNS and WINS servers by

IP address to make certain they are up and running Check the DNS and WINS services to make sure they are running on the

servers Nslookup

Use to manually perform iterative lookups on DNS servers Type ldquonslookuprdquo at a command prompt to access the tool in interactive

mode Type ldquoserver ltDNS server name or IP addressgtrdquo to change the DNS

server being queried A wide variety of other functions available by typing ldquoHelprdquo inside an

interactive Nslookup command session NBlookup

Use to see if names are being stored on individual WINS servers More information is available at http

supportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2225

Recommended Reading

TechNet httpwwwmicrosoftcomtechnetprodtechnolwindowsserver200

(choose ldquoNetwork Servicesrdquo | ldquoManaging Core NetworkServicesrdquo | ldquoDNSrdquo)

How to Troubleshoot Basic TCPIP Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us169790

Using NSLookupexe httpsupportmicrosoftcomdefaultaspxscid=kben-us200525

How to Troubleshoot Windows Server 2003 DNSDynamic Update Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us842200

NBLookupexe Command-line Tool httpsupportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2325

aka BOB Resources

BOBrsquos System Builder ResourceshttpoemmicrosoftcomBackRoom

MiniCasts and DemoCastshttpoemmicrosoftcomBOBcasts

Webcasts and ChatshttpoemmicrosoftcomBOBwired

System Builder Discussion ForumhttpoemmicrosoftcomCommunity

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 2: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 225

Name Resolution All communications between

computers and any other devices on a TCPIP networkare addressed using IPaddresses such asldquo192168152rdquo

Name resolution provides amethod of referring tocomputers by name instead of using network addresses

Windows has historically usedtwo separate naming

schemes host naming andNetBIOS naming Starting with the products

released at the time of Windows 2000 Microsoft hasbeen eliminating the need touse NetBIOS naming inMicrosoft networks

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 325

Host Name Resolution

DNS or the Domain Name Service providesname-to-IP address mapping enabling clients torefer to destinations by name rather than IP

addresses DNS has been the standard method of resolving

Windows Networking resources since Windows2000

The ldquohostsrdquo file provides local name resolutionfor TCPIP-based functions Located in ltsystemrootgtsystem32driversetc Can store any name-to-IP address mapping Contains 127001 ldquolocalhostrdquo mapping by default

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 425

Benefits of DNS

Scalable The service is appropriate for very large and very

small networks

InteroperableMicrosoftrsquos DNS server is RFC-compliant

Distributed DNS allows for the task of providing name-to-IP

address records for the Internet to be distributedamongst DNS servers eliminating the need for aldquomaster listrdquo catalog of all names

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 525

Important Terms Zone

A zone is a table of IP addressand name information used toanswer requests

More than one DNS server can store a copy of a zone for redundancy

Domain Unlike an Active Directory

domain in DNS the termldquodomainrdquo simply defines a

ldquonamespacerdquo Allows an individual to reservea section of the DNS namingstructure for use in creatingnew names

DNS domains are hierarchical

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 625

DNS Naming Structure

Becomes less specific as the name moves from left toright

Hostsubdomaindomaintopleveldomain ie wwwmicrosoftcom ()

There is a true top level least-specific domain in everyname called ldquorootrdquo represented by a dot that is nottyped

The first word of the name was traditionally the actualname of a host on a DNS network although a single IPaddress can be mapped to multiple names

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 725

DNS Client software Two types

Stub resolvers Built-in to all standard

TCPIP hosts

(computers) Capable of sending a

recursive request to aDNS server

Full resolvers

Built-in to DNS Serversand DNStroubleshooting toolssuch as nslookup

Capable of sendingeither a recursive or

iterative request

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 825

DNS Servers

Capable of storing IP address records for a zone Capable of answering both iterative and

recursive requests for records within zoneshosted locally on the DNS server ldquoAuthoritativelyrdquo

Capable of fulfilling recursive lookup requests on

behalf of clients Capable of forwarding a recursive lookup

request to another DNS server (a ldquoforwarderrdquo)

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 925

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1025

Types of Zones

Standard Primary Stores DNS records in a text file on the hard drive

Standard Secondary Retrieves a copy of the zone from another server and

uses the copy to answer requests Active-Directory Integrated

Stores zone information in Active Directory

Enables secure DDNS Stub zones

Retrieves a copy of the SOA and NS records fromanother server and uses the copy to refer lookupprocesses to the correct DNS servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1125

Forward and Reverse Lookups Forward Lookup Zones

Store information for name-to-IP address lookups Use the DNS name hierarchy for organizing zones

Reverse Lookup Zones Store information for IP address-to-name lookups Use the IP subnet structure for organizing zones

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1225

Record Types

ldquoArdquo or ldquoHostrdquo records Simple mapping of a name to IP address Can be created automatically using Dynamic DNS

ldquoCNAMErdquo or ldquoAliasrdquo records Allows a name to be mapped to an already existing

name

ldquoMXrdquo or ldquoMail Exchangerrdquo records Identifies the name or names of SMTP servers

capable of receiving SMTP mail for the domain name

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1325

Record Types

ldquoPTRrdquo or ldquoPointerrdquo Records Used in Reverse Lookup Zones to provide name information

when queried for an IP address

Can be created automatically using Dynamic DNS ldquoNSrdquo or ldquoName Serverrdquo Records

Shows the names of DNS servers for a zone

ldquoSOArdquo or ldquoStart of Authorityrdquo record Stores configuration information for how the zone operates Accessed through the SOA tab of a zonersquos properties in

Windows Server 2003 DNS servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1425

The SOA Record The Start-of-Authority

ldquoSOArdquo record is a keyelement of DNSconfiguration on all DNSservers

The Windows 2000 andWindows Server 2003versions of DNS use aGUI for configuring SOArecord properties

Settings placed in theSOA determine behaviorsfor copies of the zone onall secondary DNSservers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1525

Active Directory and SRV Records

ldquoSRVrdquo or ldquoService Locatorrdquo Records Used to store information about services needed for specialized

applications Used extensively by Active Directory authentication processes to

locate Domain Controllers and Global Catalog Servers

A separate zone called ldquo_msdcsltdomainnamegtrdquo iscreated to manage SRV records for Active Directory inWindows Server 2003 DNS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1625

Dynamic DNS

Allows clients to configure ldquoArdquoand ldquoPTRrdquo recordsautomatically

Can be used by serviceproviders to host a service onthe Internet without a static IPaddress

Can be used to create recordsfor all Active Directory domainmembers in DNS automatically

When used with ActiveDirectory-Integrated zonesDDNS may be secured so onlydomain members can createrecords

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1725

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1825

NetBIOS Names

Must be 15 characters or less

No case sensitivity

Often referred to as ldquocomputer namerdquo The ldquolmhostsrdquo file

A sample version is stored in

ltsystemrootgtsystem32driversetc with the name

ldquolmhostssamrdquo

Needed locate domain controllers for pre-Windows

2000 clients on routed networks without WINS

servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1925

WINS Servers

WINS Serversprovide a centrallookup andregistration point for NetBIOS names

Clients must beconfigured with WINSserver addresses inorder to use WINS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2025

WINS Server Replication

WINS is a multi-master

database

Two types of replication Pull replication

Configured to occur at

regular intervals

Push replication

Configured to occur after acertain number of changes

have been received

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2125

Name Resolution Troubleshooting

Ping Pinging a target by name will attempt hostname (DNS) resolution first

then NetBIOS (WINS) resolution if NetBIOS is enabled Whenever name resolution is failing ping the DNS and WINS servers by

IP address to make certain they are up and running Check the DNS and WINS services to make sure they are running on the

servers Nslookup

Use to manually perform iterative lookups on DNS servers Type ldquonslookuprdquo at a command prompt to access the tool in interactive

mode Type ldquoserver ltDNS server name or IP addressgtrdquo to change the DNS

server being queried A wide variety of other functions available by typing ldquoHelprdquo inside an

interactive Nslookup command session NBlookup

Use to see if names are being stored on individual WINS servers More information is available at http

supportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2225

Recommended Reading

TechNet httpwwwmicrosoftcomtechnetprodtechnolwindowsserver200

(choose ldquoNetwork Servicesrdquo | ldquoManaging Core NetworkServicesrdquo | ldquoDNSrdquo)

How to Troubleshoot Basic TCPIP Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us169790

Using NSLookupexe httpsupportmicrosoftcomdefaultaspxscid=kben-us200525

How to Troubleshoot Windows Server 2003 DNSDynamic Update Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us842200

NBLookupexe Command-line Tool httpsupportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2325

aka BOB Resources

BOBrsquos System Builder ResourceshttpoemmicrosoftcomBackRoom

MiniCasts and DemoCastshttpoemmicrosoftcomBOBcasts

Webcasts and ChatshttpoemmicrosoftcomBOBwired

System Builder Discussion ForumhttpoemmicrosoftcomCommunity

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 3: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 325

Host Name Resolution

DNS or the Domain Name Service providesname-to-IP address mapping enabling clients torefer to destinations by name rather than IP

addresses DNS has been the standard method of resolving

Windows Networking resources since Windows2000

The ldquohostsrdquo file provides local name resolutionfor TCPIP-based functions Located in ltsystemrootgtsystem32driversetc Can store any name-to-IP address mapping Contains 127001 ldquolocalhostrdquo mapping by default

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 425

Benefits of DNS

Scalable The service is appropriate for very large and very

small networks

InteroperableMicrosoftrsquos DNS server is RFC-compliant

Distributed DNS allows for the task of providing name-to-IP

address records for the Internet to be distributedamongst DNS servers eliminating the need for aldquomaster listrdquo catalog of all names

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 525

Important Terms Zone

A zone is a table of IP addressand name information used toanswer requests

More than one DNS server can store a copy of a zone for redundancy

Domain Unlike an Active Directory

domain in DNS the termldquodomainrdquo simply defines a

ldquonamespacerdquo Allows an individual to reservea section of the DNS namingstructure for use in creatingnew names

DNS domains are hierarchical

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 625

DNS Naming Structure

Becomes less specific as the name moves from left toright

Hostsubdomaindomaintopleveldomain ie wwwmicrosoftcom ()

There is a true top level least-specific domain in everyname called ldquorootrdquo represented by a dot that is nottyped

The first word of the name was traditionally the actualname of a host on a DNS network although a single IPaddress can be mapped to multiple names

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 725

DNS Client software Two types

Stub resolvers Built-in to all standard

TCPIP hosts

(computers) Capable of sending a

recursive request to aDNS server

Full resolvers

Built-in to DNS Serversand DNStroubleshooting toolssuch as nslookup

Capable of sendingeither a recursive or

iterative request

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 825

DNS Servers

Capable of storing IP address records for a zone Capable of answering both iterative and

recursive requests for records within zoneshosted locally on the DNS server ldquoAuthoritativelyrdquo

Capable of fulfilling recursive lookup requests on

behalf of clients Capable of forwarding a recursive lookup

request to another DNS server (a ldquoforwarderrdquo)

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 925

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1025

Types of Zones

Standard Primary Stores DNS records in a text file on the hard drive

Standard Secondary Retrieves a copy of the zone from another server and

uses the copy to answer requests Active-Directory Integrated

Stores zone information in Active Directory

Enables secure DDNS Stub zones

Retrieves a copy of the SOA and NS records fromanother server and uses the copy to refer lookupprocesses to the correct DNS servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1125

Forward and Reverse Lookups Forward Lookup Zones

Store information for name-to-IP address lookups Use the DNS name hierarchy for organizing zones

Reverse Lookup Zones Store information for IP address-to-name lookups Use the IP subnet structure for organizing zones

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1225

Record Types

ldquoArdquo or ldquoHostrdquo records Simple mapping of a name to IP address Can be created automatically using Dynamic DNS

ldquoCNAMErdquo or ldquoAliasrdquo records Allows a name to be mapped to an already existing

name

ldquoMXrdquo or ldquoMail Exchangerrdquo records Identifies the name or names of SMTP servers

capable of receiving SMTP mail for the domain name

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1325

Record Types

ldquoPTRrdquo or ldquoPointerrdquo Records Used in Reverse Lookup Zones to provide name information

when queried for an IP address

Can be created automatically using Dynamic DNS ldquoNSrdquo or ldquoName Serverrdquo Records

Shows the names of DNS servers for a zone

ldquoSOArdquo or ldquoStart of Authorityrdquo record Stores configuration information for how the zone operates Accessed through the SOA tab of a zonersquos properties in

Windows Server 2003 DNS servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1425

The SOA Record The Start-of-Authority

ldquoSOArdquo record is a keyelement of DNSconfiguration on all DNSservers

The Windows 2000 andWindows Server 2003versions of DNS use aGUI for configuring SOArecord properties

Settings placed in theSOA determine behaviorsfor copies of the zone onall secondary DNSservers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1525

Active Directory and SRV Records

ldquoSRVrdquo or ldquoService Locatorrdquo Records Used to store information about services needed for specialized

applications Used extensively by Active Directory authentication processes to

locate Domain Controllers and Global Catalog Servers

A separate zone called ldquo_msdcsltdomainnamegtrdquo iscreated to manage SRV records for Active Directory inWindows Server 2003 DNS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1625

Dynamic DNS

Allows clients to configure ldquoArdquoand ldquoPTRrdquo recordsautomatically

Can be used by serviceproviders to host a service onthe Internet without a static IPaddress

Can be used to create recordsfor all Active Directory domainmembers in DNS automatically

When used with ActiveDirectory-Integrated zonesDDNS may be secured so onlydomain members can createrecords

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1725

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1825

NetBIOS Names

Must be 15 characters or less

No case sensitivity

Often referred to as ldquocomputer namerdquo The ldquolmhostsrdquo file

A sample version is stored in

ltsystemrootgtsystem32driversetc with the name

ldquolmhostssamrdquo

Needed locate domain controllers for pre-Windows

2000 clients on routed networks without WINS

servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1925

WINS Servers

WINS Serversprovide a centrallookup andregistration point for NetBIOS names

Clients must beconfigured with WINSserver addresses inorder to use WINS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2025

WINS Server Replication

WINS is a multi-master

database

Two types of replication Pull replication

Configured to occur at

regular intervals

Push replication

Configured to occur after acertain number of changes

have been received

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2125

Name Resolution Troubleshooting

Ping Pinging a target by name will attempt hostname (DNS) resolution first

then NetBIOS (WINS) resolution if NetBIOS is enabled Whenever name resolution is failing ping the DNS and WINS servers by

IP address to make certain they are up and running Check the DNS and WINS services to make sure they are running on the

servers Nslookup

Use to manually perform iterative lookups on DNS servers Type ldquonslookuprdquo at a command prompt to access the tool in interactive

mode Type ldquoserver ltDNS server name or IP addressgtrdquo to change the DNS

server being queried A wide variety of other functions available by typing ldquoHelprdquo inside an

interactive Nslookup command session NBlookup

Use to see if names are being stored on individual WINS servers More information is available at http

supportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2225

Recommended Reading

TechNet httpwwwmicrosoftcomtechnetprodtechnolwindowsserver200

(choose ldquoNetwork Servicesrdquo | ldquoManaging Core NetworkServicesrdquo | ldquoDNSrdquo)

How to Troubleshoot Basic TCPIP Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us169790

Using NSLookupexe httpsupportmicrosoftcomdefaultaspxscid=kben-us200525

How to Troubleshoot Windows Server 2003 DNSDynamic Update Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us842200

NBLookupexe Command-line Tool httpsupportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2325

aka BOB Resources

BOBrsquos System Builder ResourceshttpoemmicrosoftcomBackRoom

MiniCasts and DemoCastshttpoemmicrosoftcomBOBcasts

Webcasts and ChatshttpoemmicrosoftcomBOBwired

System Builder Discussion ForumhttpoemmicrosoftcomCommunity

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 4: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 425

Benefits of DNS

Scalable The service is appropriate for very large and very

small networks

InteroperableMicrosoftrsquos DNS server is RFC-compliant

Distributed DNS allows for the task of providing name-to-IP

address records for the Internet to be distributedamongst DNS servers eliminating the need for aldquomaster listrdquo catalog of all names

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 525

Important Terms Zone

A zone is a table of IP addressand name information used toanswer requests

More than one DNS server can store a copy of a zone for redundancy

Domain Unlike an Active Directory

domain in DNS the termldquodomainrdquo simply defines a

ldquonamespacerdquo Allows an individual to reservea section of the DNS namingstructure for use in creatingnew names

DNS domains are hierarchical

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 625

DNS Naming Structure

Becomes less specific as the name moves from left toright

Hostsubdomaindomaintopleveldomain ie wwwmicrosoftcom ()

There is a true top level least-specific domain in everyname called ldquorootrdquo represented by a dot that is nottyped

The first word of the name was traditionally the actualname of a host on a DNS network although a single IPaddress can be mapped to multiple names

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 725

DNS Client software Two types

Stub resolvers Built-in to all standard

TCPIP hosts

(computers) Capable of sending a

recursive request to aDNS server

Full resolvers

Built-in to DNS Serversand DNStroubleshooting toolssuch as nslookup

Capable of sendingeither a recursive or

iterative request

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 825

DNS Servers

Capable of storing IP address records for a zone Capable of answering both iterative and

recursive requests for records within zoneshosted locally on the DNS server ldquoAuthoritativelyrdquo

Capable of fulfilling recursive lookup requests on

behalf of clients Capable of forwarding a recursive lookup

request to another DNS server (a ldquoforwarderrdquo)

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 925

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1025

Types of Zones

Standard Primary Stores DNS records in a text file on the hard drive

Standard Secondary Retrieves a copy of the zone from another server and

uses the copy to answer requests Active-Directory Integrated

Stores zone information in Active Directory

Enables secure DDNS Stub zones

Retrieves a copy of the SOA and NS records fromanother server and uses the copy to refer lookupprocesses to the correct DNS servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1125

Forward and Reverse Lookups Forward Lookup Zones

Store information for name-to-IP address lookups Use the DNS name hierarchy for organizing zones

Reverse Lookup Zones Store information for IP address-to-name lookups Use the IP subnet structure for organizing zones

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1225

Record Types

ldquoArdquo or ldquoHostrdquo records Simple mapping of a name to IP address Can be created automatically using Dynamic DNS

ldquoCNAMErdquo or ldquoAliasrdquo records Allows a name to be mapped to an already existing

name

ldquoMXrdquo or ldquoMail Exchangerrdquo records Identifies the name or names of SMTP servers

capable of receiving SMTP mail for the domain name

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1325

Record Types

ldquoPTRrdquo or ldquoPointerrdquo Records Used in Reverse Lookup Zones to provide name information

when queried for an IP address

Can be created automatically using Dynamic DNS ldquoNSrdquo or ldquoName Serverrdquo Records

Shows the names of DNS servers for a zone

ldquoSOArdquo or ldquoStart of Authorityrdquo record Stores configuration information for how the zone operates Accessed through the SOA tab of a zonersquos properties in

Windows Server 2003 DNS servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1425

The SOA Record The Start-of-Authority

ldquoSOArdquo record is a keyelement of DNSconfiguration on all DNSservers

The Windows 2000 andWindows Server 2003versions of DNS use aGUI for configuring SOArecord properties

Settings placed in theSOA determine behaviorsfor copies of the zone onall secondary DNSservers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1525

Active Directory and SRV Records

ldquoSRVrdquo or ldquoService Locatorrdquo Records Used to store information about services needed for specialized

applications Used extensively by Active Directory authentication processes to

locate Domain Controllers and Global Catalog Servers

A separate zone called ldquo_msdcsltdomainnamegtrdquo iscreated to manage SRV records for Active Directory inWindows Server 2003 DNS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1625

Dynamic DNS

Allows clients to configure ldquoArdquoand ldquoPTRrdquo recordsautomatically

Can be used by serviceproviders to host a service onthe Internet without a static IPaddress

Can be used to create recordsfor all Active Directory domainmembers in DNS automatically

When used with ActiveDirectory-Integrated zonesDDNS may be secured so onlydomain members can createrecords

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1725

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1825

NetBIOS Names

Must be 15 characters or less

No case sensitivity

Often referred to as ldquocomputer namerdquo The ldquolmhostsrdquo file

A sample version is stored in

ltsystemrootgtsystem32driversetc with the name

ldquolmhostssamrdquo

Needed locate domain controllers for pre-Windows

2000 clients on routed networks without WINS

servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1925

WINS Servers

WINS Serversprovide a centrallookup andregistration point for NetBIOS names

Clients must beconfigured with WINSserver addresses inorder to use WINS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2025

WINS Server Replication

WINS is a multi-master

database

Two types of replication Pull replication

Configured to occur at

regular intervals

Push replication

Configured to occur after acertain number of changes

have been received

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2125

Name Resolution Troubleshooting

Ping Pinging a target by name will attempt hostname (DNS) resolution first

then NetBIOS (WINS) resolution if NetBIOS is enabled Whenever name resolution is failing ping the DNS and WINS servers by

IP address to make certain they are up and running Check the DNS and WINS services to make sure they are running on the

servers Nslookup

Use to manually perform iterative lookups on DNS servers Type ldquonslookuprdquo at a command prompt to access the tool in interactive

mode Type ldquoserver ltDNS server name or IP addressgtrdquo to change the DNS

server being queried A wide variety of other functions available by typing ldquoHelprdquo inside an

interactive Nslookup command session NBlookup

Use to see if names are being stored on individual WINS servers More information is available at http

supportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2225

Recommended Reading

TechNet httpwwwmicrosoftcomtechnetprodtechnolwindowsserver200

(choose ldquoNetwork Servicesrdquo | ldquoManaging Core NetworkServicesrdquo | ldquoDNSrdquo)

How to Troubleshoot Basic TCPIP Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us169790

Using NSLookupexe httpsupportmicrosoftcomdefaultaspxscid=kben-us200525

How to Troubleshoot Windows Server 2003 DNSDynamic Update Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us842200

NBLookupexe Command-line Tool httpsupportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2325

aka BOB Resources

BOBrsquos System Builder ResourceshttpoemmicrosoftcomBackRoom

MiniCasts and DemoCastshttpoemmicrosoftcomBOBcasts

Webcasts and ChatshttpoemmicrosoftcomBOBwired

System Builder Discussion ForumhttpoemmicrosoftcomCommunity

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 5: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 525

Important Terms Zone

A zone is a table of IP addressand name information used toanswer requests

More than one DNS server can store a copy of a zone for redundancy

Domain Unlike an Active Directory

domain in DNS the termldquodomainrdquo simply defines a

ldquonamespacerdquo Allows an individual to reservea section of the DNS namingstructure for use in creatingnew names

DNS domains are hierarchical

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 625

DNS Naming Structure

Becomes less specific as the name moves from left toright

Hostsubdomaindomaintopleveldomain ie wwwmicrosoftcom ()

There is a true top level least-specific domain in everyname called ldquorootrdquo represented by a dot that is nottyped

The first word of the name was traditionally the actualname of a host on a DNS network although a single IPaddress can be mapped to multiple names

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 725

DNS Client software Two types

Stub resolvers Built-in to all standard

TCPIP hosts

(computers) Capable of sending a

recursive request to aDNS server

Full resolvers

Built-in to DNS Serversand DNStroubleshooting toolssuch as nslookup

Capable of sendingeither a recursive or

iterative request

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 825

DNS Servers

Capable of storing IP address records for a zone Capable of answering both iterative and

recursive requests for records within zoneshosted locally on the DNS server ldquoAuthoritativelyrdquo

Capable of fulfilling recursive lookup requests on

behalf of clients Capable of forwarding a recursive lookup

request to another DNS server (a ldquoforwarderrdquo)

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 925

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1025

Types of Zones

Standard Primary Stores DNS records in a text file on the hard drive

Standard Secondary Retrieves a copy of the zone from another server and

uses the copy to answer requests Active-Directory Integrated

Stores zone information in Active Directory

Enables secure DDNS Stub zones

Retrieves a copy of the SOA and NS records fromanother server and uses the copy to refer lookupprocesses to the correct DNS servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1125

Forward and Reverse Lookups Forward Lookup Zones

Store information for name-to-IP address lookups Use the DNS name hierarchy for organizing zones

Reverse Lookup Zones Store information for IP address-to-name lookups Use the IP subnet structure for organizing zones

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1225

Record Types

ldquoArdquo or ldquoHostrdquo records Simple mapping of a name to IP address Can be created automatically using Dynamic DNS

ldquoCNAMErdquo or ldquoAliasrdquo records Allows a name to be mapped to an already existing

name

ldquoMXrdquo or ldquoMail Exchangerrdquo records Identifies the name or names of SMTP servers

capable of receiving SMTP mail for the domain name

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1325

Record Types

ldquoPTRrdquo or ldquoPointerrdquo Records Used in Reverse Lookup Zones to provide name information

when queried for an IP address

Can be created automatically using Dynamic DNS ldquoNSrdquo or ldquoName Serverrdquo Records

Shows the names of DNS servers for a zone

ldquoSOArdquo or ldquoStart of Authorityrdquo record Stores configuration information for how the zone operates Accessed through the SOA tab of a zonersquos properties in

Windows Server 2003 DNS servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1425

The SOA Record The Start-of-Authority

ldquoSOArdquo record is a keyelement of DNSconfiguration on all DNSservers

The Windows 2000 andWindows Server 2003versions of DNS use aGUI for configuring SOArecord properties

Settings placed in theSOA determine behaviorsfor copies of the zone onall secondary DNSservers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1525

Active Directory and SRV Records

ldquoSRVrdquo or ldquoService Locatorrdquo Records Used to store information about services needed for specialized

applications Used extensively by Active Directory authentication processes to

locate Domain Controllers and Global Catalog Servers

A separate zone called ldquo_msdcsltdomainnamegtrdquo iscreated to manage SRV records for Active Directory inWindows Server 2003 DNS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1625

Dynamic DNS

Allows clients to configure ldquoArdquoand ldquoPTRrdquo recordsautomatically

Can be used by serviceproviders to host a service onthe Internet without a static IPaddress

Can be used to create recordsfor all Active Directory domainmembers in DNS automatically

When used with ActiveDirectory-Integrated zonesDDNS may be secured so onlydomain members can createrecords

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1725

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1825

NetBIOS Names

Must be 15 characters or less

No case sensitivity

Often referred to as ldquocomputer namerdquo The ldquolmhostsrdquo file

A sample version is stored in

ltsystemrootgtsystem32driversetc with the name

ldquolmhostssamrdquo

Needed locate domain controllers for pre-Windows

2000 clients on routed networks without WINS

servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1925

WINS Servers

WINS Serversprovide a centrallookup andregistration point for NetBIOS names

Clients must beconfigured with WINSserver addresses inorder to use WINS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2025

WINS Server Replication

WINS is a multi-master

database

Two types of replication Pull replication

Configured to occur at

regular intervals

Push replication

Configured to occur after acertain number of changes

have been received

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2125

Name Resolution Troubleshooting

Ping Pinging a target by name will attempt hostname (DNS) resolution first

then NetBIOS (WINS) resolution if NetBIOS is enabled Whenever name resolution is failing ping the DNS and WINS servers by

IP address to make certain they are up and running Check the DNS and WINS services to make sure they are running on the

servers Nslookup

Use to manually perform iterative lookups on DNS servers Type ldquonslookuprdquo at a command prompt to access the tool in interactive

mode Type ldquoserver ltDNS server name or IP addressgtrdquo to change the DNS

server being queried A wide variety of other functions available by typing ldquoHelprdquo inside an

interactive Nslookup command session NBlookup

Use to see if names are being stored on individual WINS servers More information is available at http

supportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2225

Recommended Reading

TechNet httpwwwmicrosoftcomtechnetprodtechnolwindowsserver200

(choose ldquoNetwork Servicesrdquo | ldquoManaging Core NetworkServicesrdquo | ldquoDNSrdquo)

How to Troubleshoot Basic TCPIP Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us169790

Using NSLookupexe httpsupportmicrosoftcomdefaultaspxscid=kben-us200525

How to Troubleshoot Windows Server 2003 DNSDynamic Update Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us842200

NBLookupexe Command-line Tool httpsupportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2325

aka BOB Resources

BOBrsquos System Builder ResourceshttpoemmicrosoftcomBackRoom

MiniCasts and DemoCastshttpoemmicrosoftcomBOBcasts

Webcasts and ChatshttpoemmicrosoftcomBOBwired

System Builder Discussion ForumhttpoemmicrosoftcomCommunity

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 6: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 625

DNS Naming Structure

Becomes less specific as the name moves from left toright

Hostsubdomaindomaintopleveldomain ie wwwmicrosoftcom ()

There is a true top level least-specific domain in everyname called ldquorootrdquo represented by a dot that is nottyped

The first word of the name was traditionally the actualname of a host on a DNS network although a single IPaddress can be mapped to multiple names

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 725

DNS Client software Two types

Stub resolvers Built-in to all standard

TCPIP hosts

(computers) Capable of sending a

recursive request to aDNS server

Full resolvers

Built-in to DNS Serversand DNStroubleshooting toolssuch as nslookup

Capable of sendingeither a recursive or

iterative request

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 825

DNS Servers

Capable of storing IP address records for a zone Capable of answering both iterative and

recursive requests for records within zoneshosted locally on the DNS server ldquoAuthoritativelyrdquo

Capable of fulfilling recursive lookup requests on

behalf of clients Capable of forwarding a recursive lookup

request to another DNS server (a ldquoforwarderrdquo)

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 925

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1025

Types of Zones

Standard Primary Stores DNS records in a text file on the hard drive

Standard Secondary Retrieves a copy of the zone from another server and

uses the copy to answer requests Active-Directory Integrated

Stores zone information in Active Directory

Enables secure DDNS Stub zones

Retrieves a copy of the SOA and NS records fromanother server and uses the copy to refer lookupprocesses to the correct DNS servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1125

Forward and Reverse Lookups Forward Lookup Zones

Store information for name-to-IP address lookups Use the DNS name hierarchy for organizing zones

Reverse Lookup Zones Store information for IP address-to-name lookups Use the IP subnet structure for organizing zones

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1225

Record Types

ldquoArdquo or ldquoHostrdquo records Simple mapping of a name to IP address Can be created automatically using Dynamic DNS

ldquoCNAMErdquo or ldquoAliasrdquo records Allows a name to be mapped to an already existing

name

ldquoMXrdquo or ldquoMail Exchangerrdquo records Identifies the name or names of SMTP servers

capable of receiving SMTP mail for the domain name

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1325

Record Types

ldquoPTRrdquo or ldquoPointerrdquo Records Used in Reverse Lookup Zones to provide name information

when queried for an IP address

Can be created automatically using Dynamic DNS ldquoNSrdquo or ldquoName Serverrdquo Records

Shows the names of DNS servers for a zone

ldquoSOArdquo or ldquoStart of Authorityrdquo record Stores configuration information for how the zone operates Accessed through the SOA tab of a zonersquos properties in

Windows Server 2003 DNS servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1425

The SOA Record The Start-of-Authority

ldquoSOArdquo record is a keyelement of DNSconfiguration on all DNSservers

The Windows 2000 andWindows Server 2003versions of DNS use aGUI for configuring SOArecord properties

Settings placed in theSOA determine behaviorsfor copies of the zone onall secondary DNSservers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1525

Active Directory and SRV Records

ldquoSRVrdquo or ldquoService Locatorrdquo Records Used to store information about services needed for specialized

applications Used extensively by Active Directory authentication processes to

locate Domain Controllers and Global Catalog Servers

A separate zone called ldquo_msdcsltdomainnamegtrdquo iscreated to manage SRV records for Active Directory inWindows Server 2003 DNS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1625

Dynamic DNS

Allows clients to configure ldquoArdquoand ldquoPTRrdquo recordsautomatically

Can be used by serviceproviders to host a service onthe Internet without a static IPaddress

Can be used to create recordsfor all Active Directory domainmembers in DNS automatically

When used with ActiveDirectory-Integrated zonesDDNS may be secured so onlydomain members can createrecords

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1725

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1825

NetBIOS Names

Must be 15 characters or less

No case sensitivity

Often referred to as ldquocomputer namerdquo The ldquolmhostsrdquo file

A sample version is stored in

ltsystemrootgtsystem32driversetc with the name

ldquolmhostssamrdquo

Needed locate domain controllers for pre-Windows

2000 clients on routed networks without WINS

servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1925

WINS Servers

WINS Serversprovide a centrallookup andregistration point for NetBIOS names

Clients must beconfigured with WINSserver addresses inorder to use WINS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2025

WINS Server Replication

WINS is a multi-master

database

Two types of replication Pull replication

Configured to occur at

regular intervals

Push replication

Configured to occur after acertain number of changes

have been received

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2125

Name Resolution Troubleshooting

Ping Pinging a target by name will attempt hostname (DNS) resolution first

then NetBIOS (WINS) resolution if NetBIOS is enabled Whenever name resolution is failing ping the DNS and WINS servers by

IP address to make certain they are up and running Check the DNS and WINS services to make sure they are running on the

servers Nslookup

Use to manually perform iterative lookups on DNS servers Type ldquonslookuprdquo at a command prompt to access the tool in interactive

mode Type ldquoserver ltDNS server name or IP addressgtrdquo to change the DNS

server being queried A wide variety of other functions available by typing ldquoHelprdquo inside an

interactive Nslookup command session NBlookup

Use to see if names are being stored on individual WINS servers More information is available at http

supportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2225

Recommended Reading

TechNet httpwwwmicrosoftcomtechnetprodtechnolwindowsserver200

(choose ldquoNetwork Servicesrdquo | ldquoManaging Core NetworkServicesrdquo | ldquoDNSrdquo)

How to Troubleshoot Basic TCPIP Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us169790

Using NSLookupexe httpsupportmicrosoftcomdefaultaspxscid=kben-us200525

How to Troubleshoot Windows Server 2003 DNSDynamic Update Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us842200

NBLookupexe Command-line Tool httpsupportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2325

aka BOB Resources

BOBrsquos System Builder ResourceshttpoemmicrosoftcomBackRoom

MiniCasts and DemoCastshttpoemmicrosoftcomBOBcasts

Webcasts and ChatshttpoemmicrosoftcomBOBwired

System Builder Discussion ForumhttpoemmicrosoftcomCommunity

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 7: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 725

DNS Client software Two types

Stub resolvers Built-in to all standard

TCPIP hosts

(computers) Capable of sending a

recursive request to aDNS server

Full resolvers

Built-in to DNS Serversand DNStroubleshooting toolssuch as nslookup

Capable of sendingeither a recursive or

iterative request

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 825

DNS Servers

Capable of storing IP address records for a zone Capable of answering both iterative and

recursive requests for records within zoneshosted locally on the DNS server ldquoAuthoritativelyrdquo

Capable of fulfilling recursive lookup requests on

behalf of clients Capable of forwarding a recursive lookup

request to another DNS server (a ldquoforwarderrdquo)

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 925

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1025

Types of Zones

Standard Primary Stores DNS records in a text file on the hard drive

Standard Secondary Retrieves a copy of the zone from another server and

uses the copy to answer requests Active-Directory Integrated

Stores zone information in Active Directory

Enables secure DDNS Stub zones

Retrieves a copy of the SOA and NS records fromanother server and uses the copy to refer lookupprocesses to the correct DNS servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1125

Forward and Reverse Lookups Forward Lookup Zones

Store information for name-to-IP address lookups Use the DNS name hierarchy for organizing zones

Reverse Lookup Zones Store information for IP address-to-name lookups Use the IP subnet structure for organizing zones

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1225

Record Types

ldquoArdquo or ldquoHostrdquo records Simple mapping of a name to IP address Can be created automatically using Dynamic DNS

ldquoCNAMErdquo or ldquoAliasrdquo records Allows a name to be mapped to an already existing

name

ldquoMXrdquo or ldquoMail Exchangerrdquo records Identifies the name or names of SMTP servers

capable of receiving SMTP mail for the domain name

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1325

Record Types

ldquoPTRrdquo or ldquoPointerrdquo Records Used in Reverse Lookup Zones to provide name information

when queried for an IP address

Can be created automatically using Dynamic DNS ldquoNSrdquo or ldquoName Serverrdquo Records

Shows the names of DNS servers for a zone

ldquoSOArdquo or ldquoStart of Authorityrdquo record Stores configuration information for how the zone operates Accessed through the SOA tab of a zonersquos properties in

Windows Server 2003 DNS servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1425

The SOA Record The Start-of-Authority

ldquoSOArdquo record is a keyelement of DNSconfiguration on all DNSservers

The Windows 2000 andWindows Server 2003versions of DNS use aGUI for configuring SOArecord properties

Settings placed in theSOA determine behaviorsfor copies of the zone onall secondary DNSservers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1525

Active Directory and SRV Records

ldquoSRVrdquo or ldquoService Locatorrdquo Records Used to store information about services needed for specialized

applications Used extensively by Active Directory authentication processes to

locate Domain Controllers and Global Catalog Servers

A separate zone called ldquo_msdcsltdomainnamegtrdquo iscreated to manage SRV records for Active Directory inWindows Server 2003 DNS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1625

Dynamic DNS

Allows clients to configure ldquoArdquoand ldquoPTRrdquo recordsautomatically

Can be used by serviceproviders to host a service onthe Internet without a static IPaddress

Can be used to create recordsfor all Active Directory domainmembers in DNS automatically

When used with ActiveDirectory-Integrated zonesDDNS may be secured so onlydomain members can createrecords

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1725

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1825

NetBIOS Names

Must be 15 characters or less

No case sensitivity

Often referred to as ldquocomputer namerdquo The ldquolmhostsrdquo file

A sample version is stored in

ltsystemrootgtsystem32driversetc with the name

ldquolmhostssamrdquo

Needed locate domain controllers for pre-Windows

2000 clients on routed networks without WINS

servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1925

WINS Servers

WINS Serversprovide a centrallookup andregistration point for NetBIOS names

Clients must beconfigured with WINSserver addresses inorder to use WINS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2025

WINS Server Replication

WINS is a multi-master

database

Two types of replication Pull replication

Configured to occur at

regular intervals

Push replication

Configured to occur after acertain number of changes

have been received

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2125

Name Resolution Troubleshooting

Ping Pinging a target by name will attempt hostname (DNS) resolution first

then NetBIOS (WINS) resolution if NetBIOS is enabled Whenever name resolution is failing ping the DNS and WINS servers by

IP address to make certain they are up and running Check the DNS and WINS services to make sure they are running on the

servers Nslookup

Use to manually perform iterative lookups on DNS servers Type ldquonslookuprdquo at a command prompt to access the tool in interactive

mode Type ldquoserver ltDNS server name or IP addressgtrdquo to change the DNS

server being queried A wide variety of other functions available by typing ldquoHelprdquo inside an

interactive Nslookup command session NBlookup

Use to see if names are being stored on individual WINS servers More information is available at http

supportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2225

Recommended Reading

TechNet httpwwwmicrosoftcomtechnetprodtechnolwindowsserver200

(choose ldquoNetwork Servicesrdquo | ldquoManaging Core NetworkServicesrdquo | ldquoDNSrdquo)

How to Troubleshoot Basic TCPIP Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us169790

Using NSLookupexe httpsupportmicrosoftcomdefaultaspxscid=kben-us200525

How to Troubleshoot Windows Server 2003 DNSDynamic Update Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us842200

NBLookupexe Command-line Tool httpsupportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2325

aka BOB Resources

BOBrsquos System Builder ResourceshttpoemmicrosoftcomBackRoom

MiniCasts and DemoCastshttpoemmicrosoftcomBOBcasts

Webcasts and ChatshttpoemmicrosoftcomBOBwired

System Builder Discussion ForumhttpoemmicrosoftcomCommunity

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 8: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 825

DNS Servers

Capable of storing IP address records for a zone Capable of answering both iterative and

recursive requests for records within zoneshosted locally on the DNS server ldquoAuthoritativelyrdquo

Capable of fulfilling recursive lookup requests on

behalf of clients Capable of forwarding a recursive lookup

request to another DNS server (a ldquoforwarderrdquo)

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 925

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1025

Types of Zones

Standard Primary Stores DNS records in a text file on the hard drive

Standard Secondary Retrieves a copy of the zone from another server and

uses the copy to answer requests Active-Directory Integrated

Stores zone information in Active Directory

Enables secure DDNS Stub zones

Retrieves a copy of the SOA and NS records fromanother server and uses the copy to refer lookupprocesses to the correct DNS servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1125

Forward and Reverse Lookups Forward Lookup Zones

Store information for name-to-IP address lookups Use the DNS name hierarchy for organizing zones

Reverse Lookup Zones Store information for IP address-to-name lookups Use the IP subnet structure for organizing zones

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1225

Record Types

ldquoArdquo or ldquoHostrdquo records Simple mapping of a name to IP address Can be created automatically using Dynamic DNS

ldquoCNAMErdquo or ldquoAliasrdquo records Allows a name to be mapped to an already existing

name

ldquoMXrdquo or ldquoMail Exchangerrdquo records Identifies the name or names of SMTP servers

capable of receiving SMTP mail for the domain name

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1325

Record Types

ldquoPTRrdquo or ldquoPointerrdquo Records Used in Reverse Lookup Zones to provide name information

when queried for an IP address

Can be created automatically using Dynamic DNS ldquoNSrdquo or ldquoName Serverrdquo Records

Shows the names of DNS servers for a zone

ldquoSOArdquo or ldquoStart of Authorityrdquo record Stores configuration information for how the zone operates Accessed through the SOA tab of a zonersquos properties in

Windows Server 2003 DNS servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1425

The SOA Record The Start-of-Authority

ldquoSOArdquo record is a keyelement of DNSconfiguration on all DNSservers

The Windows 2000 andWindows Server 2003versions of DNS use aGUI for configuring SOArecord properties

Settings placed in theSOA determine behaviorsfor copies of the zone onall secondary DNSservers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1525

Active Directory and SRV Records

ldquoSRVrdquo or ldquoService Locatorrdquo Records Used to store information about services needed for specialized

applications Used extensively by Active Directory authentication processes to

locate Domain Controllers and Global Catalog Servers

A separate zone called ldquo_msdcsltdomainnamegtrdquo iscreated to manage SRV records for Active Directory inWindows Server 2003 DNS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1625

Dynamic DNS

Allows clients to configure ldquoArdquoand ldquoPTRrdquo recordsautomatically

Can be used by serviceproviders to host a service onthe Internet without a static IPaddress

Can be used to create recordsfor all Active Directory domainmembers in DNS automatically

When used with ActiveDirectory-Integrated zonesDDNS may be secured so onlydomain members can createrecords

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1725

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1825

NetBIOS Names

Must be 15 characters or less

No case sensitivity

Often referred to as ldquocomputer namerdquo The ldquolmhostsrdquo file

A sample version is stored in

ltsystemrootgtsystem32driversetc with the name

ldquolmhostssamrdquo

Needed locate domain controllers for pre-Windows

2000 clients on routed networks without WINS

servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1925

WINS Servers

WINS Serversprovide a centrallookup andregistration point for NetBIOS names

Clients must beconfigured with WINSserver addresses inorder to use WINS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2025

WINS Server Replication

WINS is a multi-master

database

Two types of replication Pull replication

Configured to occur at

regular intervals

Push replication

Configured to occur after acertain number of changes

have been received

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2125

Name Resolution Troubleshooting

Ping Pinging a target by name will attempt hostname (DNS) resolution first

then NetBIOS (WINS) resolution if NetBIOS is enabled Whenever name resolution is failing ping the DNS and WINS servers by

IP address to make certain they are up and running Check the DNS and WINS services to make sure they are running on the

servers Nslookup

Use to manually perform iterative lookups on DNS servers Type ldquonslookuprdquo at a command prompt to access the tool in interactive

mode Type ldquoserver ltDNS server name or IP addressgtrdquo to change the DNS

server being queried A wide variety of other functions available by typing ldquoHelprdquo inside an

interactive Nslookup command session NBlookup

Use to see if names are being stored on individual WINS servers More information is available at http

supportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2225

Recommended Reading

TechNet httpwwwmicrosoftcomtechnetprodtechnolwindowsserver200

(choose ldquoNetwork Servicesrdquo | ldquoManaging Core NetworkServicesrdquo | ldquoDNSrdquo)

How to Troubleshoot Basic TCPIP Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us169790

Using NSLookupexe httpsupportmicrosoftcomdefaultaspxscid=kben-us200525

How to Troubleshoot Windows Server 2003 DNSDynamic Update Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us842200

NBLookupexe Command-line Tool httpsupportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2325

aka BOB Resources

BOBrsquos System Builder ResourceshttpoemmicrosoftcomBackRoom

MiniCasts and DemoCastshttpoemmicrosoftcomBOBcasts

Webcasts and ChatshttpoemmicrosoftcomBOBwired

System Builder Discussion ForumhttpoemmicrosoftcomCommunity

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 9: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 925

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1025

Types of Zones

Standard Primary Stores DNS records in a text file on the hard drive

Standard Secondary Retrieves a copy of the zone from another server and

uses the copy to answer requests Active-Directory Integrated

Stores zone information in Active Directory

Enables secure DDNS Stub zones

Retrieves a copy of the SOA and NS records fromanother server and uses the copy to refer lookupprocesses to the correct DNS servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1125

Forward and Reverse Lookups Forward Lookup Zones

Store information for name-to-IP address lookups Use the DNS name hierarchy for organizing zones

Reverse Lookup Zones Store information for IP address-to-name lookups Use the IP subnet structure for organizing zones

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1225

Record Types

ldquoArdquo or ldquoHostrdquo records Simple mapping of a name to IP address Can be created automatically using Dynamic DNS

ldquoCNAMErdquo or ldquoAliasrdquo records Allows a name to be mapped to an already existing

name

ldquoMXrdquo or ldquoMail Exchangerrdquo records Identifies the name or names of SMTP servers

capable of receiving SMTP mail for the domain name

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1325

Record Types

ldquoPTRrdquo or ldquoPointerrdquo Records Used in Reverse Lookup Zones to provide name information

when queried for an IP address

Can be created automatically using Dynamic DNS ldquoNSrdquo or ldquoName Serverrdquo Records

Shows the names of DNS servers for a zone

ldquoSOArdquo or ldquoStart of Authorityrdquo record Stores configuration information for how the zone operates Accessed through the SOA tab of a zonersquos properties in

Windows Server 2003 DNS servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1425

The SOA Record The Start-of-Authority

ldquoSOArdquo record is a keyelement of DNSconfiguration on all DNSservers

The Windows 2000 andWindows Server 2003versions of DNS use aGUI for configuring SOArecord properties

Settings placed in theSOA determine behaviorsfor copies of the zone onall secondary DNSservers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1525

Active Directory and SRV Records

ldquoSRVrdquo or ldquoService Locatorrdquo Records Used to store information about services needed for specialized

applications Used extensively by Active Directory authentication processes to

locate Domain Controllers and Global Catalog Servers

A separate zone called ldquo_msdcsltdomainnamegtrdquo iscreated to manage SRV records for Active Directory inWindows Server 2003 DNS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1625

Dynamic DNS

Allows clients to configure ldquoArdquoand ldquoPTRrdquo recordsautomatically

Can be used by serviceproviders to host a service onthe Internet without a static IPaddress

Can be used to create recordsfor all Active Directory domainmembers in DNS automatically

When used with ActiveDirectory-Integrated zonesDDNS may be secured so onlydomain members can createrecords

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1725

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1825

NetBIOS Names

Must be 15 characters or less

No case sensitivity

Often referred to as ldquocomputer namerdquo The ldquolmhostsrdquo file

A sample version is stored in

ltsystemrootgtsystem32driversetc with the name

ldquolmhostssamrdquo

Needed locate domain controllers for pre-Windows

2000 clients on routed networks without WINS

servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1925

WINS Servers

WINS Serversprovide a centrallookup andregistration point for NetBIOS names

Clients must beconfigured with WINSserver addresses inorder to use WINS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2025

WINS Server Replication

WINS is a multi-master

database

Two types of replication Pull replication

Configured to occur at

regular intervals

Push replication

Configured to occur after acertain number of changes

have been received

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2125

Name Resolution Troubleshooting

Ping Pinging a target by name will attempt hostname (DNS) resolution first

then NetBIOS (WINS) resolution if NetBIOS is enabled Whenever name resolution is failing ping the DNS and WINS servers by

IP address to make certain they are up and running Check the DNS and WINS services to make sure they are running on the

servers Nslookup

Use to manually perform iterative lookups on DNS servers Type ldquonslookuprdquo at a command prompt to access the tool in interactive

mode Type ldquoserver ltDNS server name or IP addressgtrdquo to change the DNS

server being queried A wide variety of other functions available by typing ldquoHelprdquo inside an

interactive Nslookup command session NBlookup

Use to see if names are being stored on individual WINS servers More information is available at http

supportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2225

Recommended Reading

TechNet httpwwwmicrosoftcomtechnetprodtechnolwindowsserver200

(choose ldquoNetwork Servicesrdquo | ldquoManaging Core NetworkServicesrdquo | ldquoDNSrdquo)

How to Troubleshoot Basic TCPIP Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us169790

Using NSLookupexe httpsupportmicrosoftcomdefaultaspxscid=kben-us200525

How to Troubleshoot Windows Server 2003 DNSDynamic Update Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us842200

NBLookupexe Command-line Tool httpsupportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2325

aka BOB Resources

BOBrsquos System Builder ResourceshttpoemmicrosoftcomBackRoom

MiniCasts and DemoCastshttpoemmicrosoftcomBOBcasts

Webcasts and ChatshttpoemmicrosoftcomBOBwired

System Builder Discussion ForumhttpoemmicrosoftcomCommunity

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 10: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1025

Types of Zones

Standard Primary Stores DNS records in a text file on the hard drive

Standard Secondary Retrieves a copy of the zone from another server and

uses the copy to answer requests Active-Directory Integrated

Stores zone information in Active Directory

Enables secure DDNS Stub zones

Retrieves a copy of the SOA and NS records fromanother server and uses the copy to refer lookupprocesses to the correct DNS servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1125

Forward and Reverse Lookups Forward Lookup Zones

Store information for name-to-IP address lookups Use the DNS name hierarchy for organizing zones

Reverse Lookup Zones Store information for IP address-to-name lookups Use the IP subnet structure for organizing zones

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1225

Record Types

ldquoArdquo or ldquoHostrdquo records Simple mapping of a name to IP address Can be created automatically using Dynamic DNS

ldquoCNAMErdquo or ldquoAliasrdquo records Allows a name to be mapped to an already existing

name

ldquoMXrdquo or ldquoMail Exchangerrdquo records Identifies the name or names of SMTP servers

capable of receiving SMTP mail for the domain name

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1325

Record Types

ldquoPTRrdquo or ldquoPointerrdquo Records Used in Reverse Lookup Zones to provide name information

when queried for an IP address

Can be created automatically using Dynamic DNS ldquoNSrdquo or ldquoName Serverrdquo Records

Shows the names of DNS servers for a zone

ldquoSOArdquo or ldquoStart of Authorityrdquo record Stores configuration information for how the zone operates Accessed through the SOA tab of a zonersquos properties in

Windows Server 2003 DNS servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1425

The SOA Record The Start-of-Authority

ldquoSOArdquo record is a keyelement of DNSconfiguration on all DNSservers

The Windows 2000 andWindows Server 2003versions of DNS use aGUI for configuring SOArecord properties

Settings placed in theSOA determine behaviorsfor copies of the zone onall secondary DNSservers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1525

Active Directory and SRV Records

ldquoSRVrdquo or ldquoService Locatorrdquo Records Used to store information about services needed for specialized

applications Used extensively by Active Directory authentication processes to

locate Domain Controllers and Global Catalog Servers

A separate zone called ldquo_msdcsltdomainnamegtrdquo iscreated to manage SRV records for Active Directory inWindows Server 2003 DNS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1625

Dynamic DNS

Allows clients to configure ldquoArdquoand ldquoPTRrdquo recordsautomatically

Can be used by serviceproviders to host a service onthe Internet without a static IPaddress

Can be used to create recordsfor all Active Directory domainmembers in DNS automatically

When used with ActiveDirectory-Integrated zonesDDNS may be secured so onlydomain members can createrecords

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1725

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1825

NetBIOS Names

Must be 15 characters or less

No case sensitivity

Often referred to as ldquocomputer namerdquo The ldquolmhostsrdquo file

A sample version is stored in

ltsystemrootgtsystem32driversetc with the name

ldquolmhostssamrdquo

Needed locate domain controllers for pre-Windows

2000 clients on routed networks without WINS

servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1925

WINS Servers

WINS Serversprovide a centrallookup andregistration point for NetBIOS names

Clients must beconfigured with WINSserver addresses inorder to use WINS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2025

WINS Server Replication

WINS is a multi-master

database

Two types of replication Pull replication

Configured to occur at

regular intervals

Push replication

Configured to occur after acertain number of changes

have been received

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2125

Name Resolution Troubleshooting

Ping Pinging a target by name will attempt hostname (DNS) resolution first

then NetBIOS (WINS) resolution if NetBIOS is enabled Whenever name resolution is failing ping the DNS and WINS servers by

IP address to make certain they are up and running Check the DNS and WINS services to make sure they are running on the

servers Nslookup

Use to manually perform iterative lookups on DNS servers Type ldquonslookuprdquo at a command prompt to access the tool in interactive

mode Type ldquoserver ltDNS server name or IP addressgtrdquo to change the DNS

server being queried A wide variety of other functions available by typing ldquoHelprdquo inside an

interactive Nslookup command session NBlookup

Use to see if names are being stored on individual WINS servers More information is available at http

supportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2225

Recommended Reading

TechNet httpwwwmicrosoftcomtechnetprodtechnolwindowsserver200

(choose ldquoNetwork Servicesrdquo | ldquoManaging Core NetworkServicesrdquo | ldquoDNSrdquo)

How to Troubleshoot Basic TCPIP Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us169790

Using NSLookupexe httpsupportmicrosoftcomdefaultaspxscid=kben-us200525

How to Troubleshoot Windows Server 2003 DNSDynamic Update Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us842200

NBLookupexe Command-line Tool httpsupportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2325

aka BOB Resources

BOBrsquos System Builder ResourceshttpoemmicrosoftcomBackRoom

MiniCasts and DemoCastshttpoemmicrosoftcomBOBcasts

Webcasts and ChatshttpoemmicrosoftcomBOBwired

System Builder Discussion ForumhttpoemmicrosoftcomCommunity

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 11: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1125

Forward and Reverse Lookups Forward Lookup Zones

Store information for name-to-IP address lookups Use the DNS name hierarchy for organizing zones

Reverse Lookup Zones Store information for IP address-to-name lookups Use the IP subnet structure for organizing zones

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1225

Record Types

ldquoArdquo or ldquoHostrdquo records Simple mapping of a name to IP address Can be created automatically using Dynamic DNS

ldquoCNAMErdquo or ldquoAliasrdquo records Allows a name to be mapped to an already existing

name

ldquoMXrdquo or ldquoMail Exchangerrdquo records Identifies the name or names of SMTP servers

capable of receiving SMTP mail for the domain name

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1325

Record Types

ldquoPTRrdquo or ldquoPointerrdquo Records Used in Reverse Lookup Zones to provide name information

when queried for an IP address

Can be created automatically using Dynamic DNS ldquoNSrdquo or ldquoName Serverrdquo Records

Shows the names of DNS servers for a zone

ldquoSOArdquo or ldquoStart of Authorityrdquo record Stores configuration information for how the zone operates Accessed through the SOA tab of a zonersquos properties in

Windows Server 2003 DNS servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1425

The SOA Record The Start-of-Authority

ldquoSOArdquo record is a keyelement of DNSconfiguration on all DNSservers

The Windows 2000 andWindows Server 2003versions of DNS use aGUI for configuring SOArecord properties

Settings placed in theSOA determine behaviorsfor copies of the zone onall secondary DNSservers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1525

Active Directory and SRV Records

ldquoSRVrdquo or ldquoService Locatorrdquo Records Used to store information about services needed for specialized

applications Used extensively by Active Directory authentication processes to

locate Domain Controllers and Global Catalog Servers

A separate zone called ldquo_msdcsltdomainnamegtrdquo iscreated to manage SRV records for Active Directory inWindows Server 2003 DNS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1625

Dynamic DNS

Allows clients to configure ldquoArdquoand ldquoPTRrdquo recordsautomatically

Can be used by serviceproviders to host a service onthe Internet without a static IPaddress

Can be used to create recordsfor all Active Directory domainmembers in DNS automatically

When used with ActiveDirectory-Integrated zonesDDNS may be secured so onlydomain members can createrecords

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1725

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1825

NetBIOS Names

Must be 15 characters or less

No case sensitivity

Often referred to as ldquocomputer namerdquo The ldquolmhostsrdquo file

A sample version is stored in

ltsystemrootgtsystem32driversetc with the name

ldquolmhostssamrdquo

Needed locate domain controllers for pre-Windows

2000 clients on routed networks without WINS

servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1925

WINS Servers

WINS Serversprovide a centrallookup andregistration point for NetBIOS names

Clients must beconfigured with WINSserver addresses inorder to use WINS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2025

WINS Server Replication

WINS is a multi-master

database

Two types of replication Pull replication

Configured to occur at

regular intervals

Push replication

Configured to occur after acertain number of changes

have been received

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2125

Name Resolution Troubleshooting

Ping Pinging a target by name will attempt hostname (DNS) resolution first

then NetBIOS (WINS) resolution if NetBIOS is enabled Whenever name resolution is failing ping the DNS and WINS servers by

IP address to make certain they are up and running Check the DNS and WINS services to make sure they are running on the

servers Nslookup

Use to manually perform iterative lookups on DNS servers Type ldquonslookuprdquo at a command prompt to access the tool in interactive

mode Type ldquoserver ltDNS server name or IP addressgtrdquo to change the DNS

server being queried A wide variety of other functions available by typing ldquoHelprdquo inside an

interactive Nslookup command session NBlookup

Use to see if names are being stored on individual WINS servers More information is available at http

supportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2225

Recommended Reading

TechNet httpwwwmicrosoftcomtechnetprodtechnolwindowsserver200

(choose ldquoNetwork Servicesrdquo | ldquoManaging Core NetworkServicesrdquo | ldquoDNSrdquo)

How to Troubleshoot Basic TCPIP Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us169790

Using NSLookupexe httpsupportmicrosoftcomdefaultaspxscid=kben-us200525

How to Troubleshoot Windows Server 2003 DNSDynamic Update Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us842200

NBLookupexe Command-line Tool httpsupportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2325

aka BOB Resources

BOBrsquos System Builder ResourceshttpoemmicrosoftcomBackRoom

MiniCasts and DemoCastshttpoemmicrosoftcomBOBcasts

Webcasts and ChatshttpoemmicrosoftcomBOBwired

System Builder Discussion ForumhttpoemmicrosoftcomCommunity

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 12: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1225

Record Types

ldquoArdquo or ldquoHostrdquo records Simple mapping of a name to IP address Can be created automatically using Dynamic DNS

ldquoCNAMErdquo or ldquoAliasrdquo records Allows a name to be mapped to an already existing

name

ldquoMXrdquo or ldquoMail Exchangerrdquo records Identifies the name or names of SMTP servers

capable of receiving SMTP mail for the domain name

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1325

Record Types

ldquoPTRrdquo or ldquoPointerrdquo Records Used in Reverse Lookup Zones to provide name information

when queried for an IP address

Can be created automatically using Dynamic DNS ldquoNSrdquo or ldquoName Serverrdquo Records

Shows the names of DNS servers for a zone

ldquoSOArdquo or ldquoStart of Authorityrdquo record Stores configuration information for how the zone operates Accessed through the SOA tab of a zonersquos properties in

Windows Server 2003 DNS servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1425

The SOA Record The Start-of-Authority

ldquoSOArdquo record is a keyelement of DNSconfiguration on all DNSservers

The Windows 2000 andWindows Server 2003versions of DNS use aGUI for configuring SOArecord properties

Settings placed in theSOA determine behaviorsfor copies of the zone onall secondary DNSservers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1525

Active Directory and SRV Records

ldquoSRVrdquo or ldquoService Locatorrdquo Records Used to store information about services needed for specialized

applications Used extensively by Active Directory authentication processes to

locate Domain Controllers and Global Catalog Servers

A separate zone called ldquo_msdcsltdomainnamegtrdquo iscreated to manage SRV records for Active Directory inWindows Server 2003 DNS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1625

Dynamic DNS

Allows clients to configure ldquoArdquoand ldquoPTRrdquo recordsautomatically

Can be used by serviceproviders to host a service onthe Internet without a static IPaddress

Can be used to create recordsfor all Active Directory domainmembers in DNS automatically

When used with ActiveDirectory-Integrated zonesDDNS may be secured so onlydomain members can createrecords

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1725

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1825

NetBIOS Names

Must be 15 characters or less

No case sensitivity

Often referred to as ldquocomputer namerdquo The ldquolmhostsrdquo file

A sample version is stored in

ltsystemrootgtsystem32driversetc with the name

ldquolmhostssamrdquo

Needed locate domain controllers for pre-Windows

2000 clients on routed networks without WINS

servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1925

WINS Servers

WINS Serversprovide a centrallookup andregistration point for NetBIOS names

Clients must beconfigured with WINSserver addresses inorder to use WINS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2025

WINS Server Replication

WINS is a multi-master

database

Two types of replication Pull replication

Configured to occur at

regular intervals

Push replication

Configured to occur after acertain number of changes

have been received

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2125

Name Resolution Troubleshooting

Ping Pinging a target by name will attempt hostname (DNS) resolution first

then NetBIOS (WINS) resolution if NetBIOS is enabled Whenever name resolution is failing ping the DNS and WINS servers by

IP address to make certain they are up and running Check the DNS and WINS services to make sure they are running on the

servers Nslookup

Use to manually perform iterative lookups on DNS servers Type ldquonslookuprdquo at a command prompt to access the tool in interactive

mode Type ldquoserver ltDNS server name or IP addressgtrdquo to change the DNS

server being queried A wide variety of other functions available by typing ldquoHelprdquo inside an

interactive Nslookup command session NBlookup

Use to see if names are being stored on individual WINS servers More information is available at http

supportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2225

Recommended Reading

TechNet httpwwwmicrosoftcomtechnetprodtechnolwindowsserver200

(choose ldquoNetwork Servicesrdquo | ldquoManaging Core NetworkServicesrdquo | ldquoDNSrdquo)

How to Troubleshoot Basic TCPIP Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us169790

Using NSLookupexe httpsupportmicrosoftcomdefaultaspxscid=kben-us200525

How to Troubleshoot Windows Server 2003 DNSDynamic Update Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us842200

NBLookupexe Command-line Tool httpsupportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2325

aka BOB Resources

BOBrsquos System Builder ResourceshttpoemmicrosoftcomBackRoom

MiniCasts and DemoCastshttpoemmicrosoftcomBOBcasts

Webcasts and ChatshttpoemmicrosoftcomBOBwired

System Builder Discussion ForumhttpoemmicrosoftcomCommunity

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 13: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1325

Record Types

ldquoPTRrdquo or ldquoPointerrdquo Records Used in Reverse Lookup Zones to provide name information

when queried for an IP address

Can be created automatically using Dynamic DNS ldquoNSrdquo or ldquoName Serverrdquo Records

Shows the names of DNS servers for a zone

ldquoSOArdquo or ldquoStart of Authorityrdquo record Stores configuration information for how the zone operates Accessed through the SOA tab of a zonersquos properties in

Windows Server 2003 DNS servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1425

The SOA Record The Start-of-Authority

ldquoSOArdquo record is a keyelement of DNSconfiguration on all DNSservers

The Windows 2000 andWindows Server 2003versions of DNS use aGUI for configuring SOArecord properties

Settings placed in theSOA determine behaviorsfor copies of the zone onall secondary DNSservers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1525

Active Directory and SRV Records

ldquoSRVrdquo or ldquoService Locatorrdquo Records Used to store information about services needed for specialized

applications Used extensively by Active Directory authentication processes to

locate Domain Controllers and Global Catalog Servers

A separate zone called ldquo_msdcsltdomainnamegtrdquo iscreated to manage SRV records for Active Directory inWindows Server 2003 DNS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1625

Dynamic DNS

Allows clients to configure ldquoArdquoand ldquoPTRrdquo recordsautomatically

Can be used by serviceproviders to host a service onthe Internet without a static IPaddress

Can be used to create recordsfor all Active Directory domainmembers in DNS automatically

When used with ActiveDirectory-Integrated zonesDDNS may be secured so onlydomain members can createrecords

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1725

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1825

NetBIOS Names

Must be 15 characters or less

No case sensitivity

Often referred to as ldquocomputer namerdquo The ldquolmhostsrdquo file

A sample version is stored in

ltsystemrootgtsystem32driversetc with the name

ldquolmhostssamrdquo

Needed locate domain controllers for pre-Windows

2000 clients on routed networks without WINS

servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1925

WINS Servers

WINS Serversprovide a centrallookup andregistration point for NetBIOS names

Clients must beconfigured with WINSserver addresses inorder to use WINS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2025

WINS Server Replication

WINS is a multi-master

database

Two types of replication Pull replication

Configured to occur at

regular intervals

Push replication

Configured to occur after acertain number of changes

have been received

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2125

Name Resolution Troubleshooting

Ping Pinging a target by name will attempt hostname (DNS) resolution first

then NetBIOS (WINS) resolution if NetBIOS is enabled Whenever name resolution is failing ping the DNS and WINS servers by

IP address to make certain they are up and running Check the DNS and WINS services to make sure they are running on the

servers Nslookup

Use to manually perform iterative lookups on DNS servers Type ldquonslookuprdquo at a command prompt to access the tool in interactive

mode Type ldquoserver ltDNS server name or IP addressgtrdquo to change the DNS

server being queried A wide variety of other functions available by typing ldquoHelprdquo inside an

interactive Nslookup command session NBlookup

Use to see if names are being stored on individual WINS servers More information is available at http

supportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2225

Recommended Reading

TechNet httpwwwmicrosoftcomtechnetprodtechnolwindowsserver200

(choose ldquoNetwork Servicesrdquo | ldquoManaging Core NetworkServicesrdquo | ldquoDNSrdquo)

How to Troubleshoot Basic TCPIP Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us169790

Using NSLookupexe httpsupportmicrosoftcomdefaultaspxscid=kben-us200525

How to Troubleshoot Windows Server 2003 DNSDynamic Update Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us842200

NBLookupexe Command-line Tool httpsupportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2325

aka BOB Resources

BOBrsquos System Builder ResourceshttpoemmicrosoftcomBackRoom

MiniCasts and DemoCastshttpoemmicrosoftcomBOBcasts

Webcasts and ChatshttpoemmicrosoftcomBOBwired

System Builder Discussion ForumhttpoemmicrosoftcomCommunity

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 14: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1425

The SOA Record The Start-of-Authority

ldquoSOArdquo record is a keyelement of DNSconfiguration on all DNSservers

The Windows 2000 andWindows Server 2003versions of DNS use aGUI for configuring SOArecord properties

Settings placed in theSOA determine behaviorsfor copies of the zone onall secondary DNSservers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1525

Active Directory and SRV Records

ldquoSRVrdquo or ldquoService Locatorrdquo Records Used to store information about services needed for specialized

applications Used extensively by Active Directory authentication processes to

locate Domain Controllers and Global Catalog Servers

A separate zone called ldquo_msdcsltdomainnamegtrdquo iscreated to manage SRV records for Active Directory inWindows Server 2003 DNS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1625

Dynamic DNS

Allows clients to configure ldquoArdquoand ldquoPTRrdquo recordsautomatically

Can be used by serviceproviders to host a service onthe Internet without a static IPaddress

Can be used to create recordsfor all Active Directory domainmembers in DNS automatically

When used with ActiveDirectory-Integrated zonesDDNS may be secured so onlydomain members can createrecords

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1725

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1825

NetBIOS Names

Must be 15 characters or less

No case sensitivity

Often referred to as ldquocomputer namerdquo The ldquolmhostsrdquo file

A sample version is stored in

ltsystemrootgtsystem32driversetc with the name

ldquolmhostssamrdquo

Needed locate domain controllers for pre-Windows

2000 clients on routed networks without WINS

servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1925

WINS Servers

WINS Serversprovide a centrallookup andregistration point for NetBIOS names

Clients must beconfigured with WINSserver addresses inorder to use WINS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2025

WINS Server Replication

WINS is a multi-master

database

Two types of replication Pull replication

Configured to occur at

regular intervals

Push replication

Configured to occur after acertain number of changes

have been received

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2125

Name Resolution Troubleshooting

Ping Pinging a target by name will attempt hostname (DNS) resolution first

then NetBIOS (WINS) resolution if NetBIOS is enabled Whenever name resolution is failing ping the DNS and WINS servers by

IP address to make certain they are up and running Check the DNS and WINS services to make sure they are running on the

servers Nslookup

Use to manually perform iterative lookups on DNS servers Type ldquonslookuprdquo at a command prompt to access the tool in interactive

mode Type ldquoserver ltDNS server name or IP addressgtrdquo to change the DNS

server being queried A wide variety of other functions available by typing ldquoHelprdquo inside an

interactive Nslookup command session NBlookup

Use to see if names are being stored on individual WINS servers More information is available at http

supportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2225

Recommended Reading

TechNet httpwwwmicrosoftcomtechnetprodtechnolwindowsserver200

(choose ldquoNetwork Servicesrdquo | ldquoManaging Core NetworkServicesrdquo | ldquoDNSrdquo)

How to Troubleshoot Basic TCPIP Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us169790

Using NSLookupexe httpsupportmicrosoftcomdefaultaspxscid=kben-us200525

How to Troubleshoot Windows Server 2003 DNSDynamic Update Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us842200

NBLookupexe Command-line Tool httpsupportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2325

aka BOB Resources

BOBrsquos System Builder ResourceshttpoemmicrosoftcomBackRoom

MiniCasts and DemoCastshttpoemmicrosoftcomBOBcasts

Webcasts and ChatshttpoemmicrosoftcomBOBwired

System Builder Discussion ForumhttpoemmicrosoftcomCommunity

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 15: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1525

Active Directory and SRV Records

ldquoSRVrdquo or ldquoService Locatorrdquo Records Used to store information about services needed for specialized

applications Used extensively by Active Directory authentication processes to

locate Domain Controllers and Global Catalog Servers

A separate zone called ldquo_msdcsltdomainnamegtrdquo iscreated to manage SRV records for Active Directory inWindows Server 2003 DNS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1625

Dynamic DNS

Allows clients to configure ldquoArdquoand ldquoPTRrdquo recordsautomatically

Can be used by serviceproviders to host a service onthe Internet without a static IPaddress

Can be used to create recordsfor all Active Directory domainmembers in DNS automatically

When used with ActiveDirectory-Integrated zonesDDNS may be secured so onlydomain members can createrecords

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1725

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1825

NetBIOS Names

Must be 15 characters or less

No case sensitivity

Often referred to as ldquocomputer namerdquo The ldquolmhostsrdquo file

A sample version is stored in

ltsystemrootgtsystem32driversetc with the name

ldquolmhostssamrdquo

Needed locate domain controllers for pre-Windows

2000 clients on routed networks without WINS

servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1925

WINS Servers

WINS Serversprovide a centrallookup andregistration point for NetBIOS names

Clients must beconfigured with WINSserver addresses inorder to use WINS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2025

WINS Server Replication

WINS is a multi-master

database

Two types of replication Pull replication

Configured to occur at

regular intervals

Push replication

Configured to occur after acertain number of changes

have been received

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2125

Name Resolution Troubleshooting

Ping Pinging a target by name will attempt hostname (DNS) resolution first

then NetBIOS (WINS) resolution if NetBIOS is enabled Whenever name resolution is failing ping the DNS and WINS servers by

IP address to make certain they are up and running Check the DNS and WINS services to make sure they are running on the

servers Nslookup

Use to manually perform iterative lookups on DNS servers Type ldquonslookuprdquo at a command prompt to access the tool in interactive

mode Type ldquoserver ltDNS server name or IP addressgtrdquo to change the DNS

server being queried A wide variety of other functions available by typing ldquoHelprdquo inside an

interactive Nslookup command session NBlookup

Use to see if names are being stored on individual WINS servers More information is available at http

supportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2225

Recommended Reading

TechNet httpwwwmicrosoftcomtechnetprodtechnolwindowsserver200

(choose ldquoNetwork Servicesrdquo | ldquoManaging Core NetworkServicesrdquo | ldquoDNSrdquo)

How to Troubleshoot Basic TCPIP Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us169790

Using NSLookupexe httpsupportmicrosoftcomdefaultaspxscid=kben-us200525

How to Troubleshoot Windows Server 2003 DNSDynamic Update Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us842200

NBLookupexe Command-line Tool httpsupportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2325

aka BOB Resources

BOBrsquos System Builder ResourceshttpoemmicrosoftcomBackRoom

MiniCasts and DemoCastshttpoemmicrosoftcomBOBcasts

Webcasts and ChatshttpoemmicrosoftcomBOBwired

System Builder Discussion ForumhttpoemmicrosoftcomCommunity

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 16: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1625

Dynamic DNS

Allows clients to configure ldquoArdquoand ldquoPTRrdquo recordsautomatically

Can be used by serviceproviders to host a service onthe Internet without a static IPaddress

Can be used to create recordsfor all Active Directory domainmembers in DNS automatically

When used with ActiveDirectory-Integrated zonesDDNS may be secured so onlydomain members can createrecords

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1725

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1825

NetBIOS Names

Must be 15 characters or less

No case sensitivity

Often referred to as ldquocomputer namerdquo The ldquolmhostsrdquo file

A sample version is stored in

ltsystemrootgtsystem32driversetc with the name

ldquolmhostssamrdquo

Needed locate domain controllers for pre-Windows

2000 clients on routed networks without WINS

servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1925

WINS Servers

WINS Serversprovide a centrallookup andregistration point for NetBIOS names

Clients must beconfigured with WINSserver addresses inorder to use WINS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2025

WINS Server Replication

WINS is a multi-master

database

Two types of replication Pull replication

Configured to occur at

regular intervals

Push replication

Configured to occur after acertain number of changes

have been received

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2125

Name Resolution Troubleshooting

Ping Pinging a target by name will attempt hostname (DNS) resolution first

then NetBIOS (WINS) resolution if NetBIOS is enabled Whenever name resolution is failing ping the DNS and WINS servers by

IP address to make certain they are up and running Check the DNS and WINS services to make sure they are running on the

servers Nslookup

Use to manually perform iterative lookups on DNS servers Type ldquonslookuprdquo at a command prompt to access the tool in interactive

mode Type ldquoserver ltDNS server name or IP addressgtrdquo to change the DNS

server being queried A wide variety of other functions available by typing ldquoHelprdquo inside an

interactive Nslookup command session NBlookup

Use to see if names are being stored on individual WINS servers More information is available at http

supportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2225

Recommended Reading

TechNet httpwwwmicrosoftcomtechnetprodtechnolwindowsserver200

(choose ldquoNetwork Servicesrdquo | ldquoManaging Core NetworkServicesrdquo | ldquoDNSrdquo)

How to Troubleshoot Basic TCPIP Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us169790

Using NSLookupexe httpsupportmicrosoftcomdefaultaspxscid=kben-us200525

How to Troubleshoot Windows Server 2003 DNSDynamic Update Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us842200

NBLookupexe Command-line Tool httpsupportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2325

aka BOB Resources

BOBrsquos System Builder ResourceshttpoemmicrosoftcomBackRoom

MiniCasts and DemoCastshttpoemmicrosoftcomBOBcasts

Webcasts and ChatshttpoemmicrosoftcomBOBwired

System Builder Discussion ForumhttpoemmicrosoftcomCommunity

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 17: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1725

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1825

NetBIOS Names

Must be 15 characters or less

No case sensitivity

Often referred to as ldquocomputer namerdquo The ldquolmhostsrdquo file

A sample version is stored in

ltsystemrootgtsystem32driversetc with the name

ldquolmhostssamrdquo

Needed locate domain controllers for pre-Windows

2000 clients on routed networks without WINS

servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1925

WINS Servers

WINS Serversprovide a centrallookup andregistration point for NetBIOS names

Clients must beconfigured with WINSserver addresses inorder to use WINS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2025

WINS Server Replication

WINS is a multi-master

database

Two types of replication Pull replication

Configured to occur at

regular intervals

Push replication

Configured to occur after acertain number of changes

have been received

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2125

Name Resolution Troubleshooting

Ping Pinging a target by name will attempt hostname (DNS) resolution first

then NetBIOS (WINS) resolution if NetBIOS is enabled Whenever name resolution is failing ping the DNS and WINS servers by

IP address to make certain they are up and running Check the DNS and WINS services to make sure they are running on the

servers Nslookup

Use to manually perform iterative lookups on DNS servers Type ldquonslookuprdquo at a command prompt to access the tool in interactive

mode Type ldquoserver ltDNS server name or IP addressgtrdquo to change the DNS

server being queried A wide variety of other functions available by typing ldquoHelprdquo inside an

interactive Nslookup command session NBlookup

Use to see if names are being stored on individual WINS servers More information is available at http

supportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2225

Recommended Reading

TechNet httpwwwmicrosoftcomtechnetprodtechnolwindowsserver200

(choose ldquoNetwork Servicesrdquo | ldquoManaging Core NetworkServicesrdquo | ldquoDNSrdquo)

How to Troubleshoot Basic TCPIP Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us169790

Using NSLookupexe httpsupportmicrosoftcomdefaultaspxscid=kben-us200525

How to Troubleshoot Windows Server 2003 DNSDynamic Update Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us842200

NBLookupexe Command-line Tool httpsupportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2325

aka BOB Resources

BOBrsquos System Builder ResourceshttpoemmicrosoftcomBackRoom

MiniCasts and DemoCastshttpoemmicrosoftcomBOBcasts

Webcasts and ChatshttpoemmicrosoftcomBOBwired

System Builder Discussion ForumhttpoemmicrosoftcomCommunity

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 18: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1825

NetBIOS Names

Must be 15 characters or less

No case sensitivity

Often referred to as ldquocomputer namerdquo The ldquolmhostsrdquo file

A sample version is stored in

ltsystemrootgtsystem32driversetc with the name

ldquolmhostssamrdquo

Needed locate domain controllers for pre-Windows

2000 clients on routed networks without WINS

servers

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1925

WINS Servers

WINS Serversprovide a centrallookup andregistration point for NetBIOS names

Clients must beconfigured with WINSserver addresses inorder to use WINS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2025

WINS Server Replication

WINS is a multi-master

database

Two types of replication Pull replication

Configured to occur at

regular intervals

Push replication

Configured to occur after acertain number of changes

have been received

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2125

Name Resolution Troubleshooting

Ping Pinging a target by name will attempt hostname (DNS) resolution first

then NetBIOS (WINS) resolution if NetBIOS is enabled Whenever name resolution is failing ping the DNS and WINS servers by

IP address to make certain they are up and running Check the DNS and WINS services to make sure they are running on the

servers Nslookup

Use to manually perform iterative lookups on DNS servers Type ldquonslookuprdquo at a command prompt to access the tool in interactive

mode Type ldquoserver ltDNS server name or IP addressgtrdquo to change the DNS

server being queried A wide variety of other functions available by typing ldquoHelprdquo inside an

interactive Nslookup command session NBlookup

Use to see if names are being stored on individual WINS servers More information is available at http

supportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2225

Recommended Reading

TechNet httpwwwmicrosoftcomtechnetprodtechnolwindowsserver200

(choose ldquoNetwork Servicesrdquo | ldquoManaging Core NetworkServicesrdquo | ldquoDNSrdquo)

How to Troubleshoot Basic TCPIP Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us169790

Using NSLookupexe httpsupportmicrosoftcomdefaultaspxscid=kben-us200525

How to Troubleshoot Windows Server 2003 DNSDynamic Update Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us842200

NBLookupexe Command-line Tool httpsupportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2325

aka BOB Resources

BOBrsquos System Builder ResourceshttpoemmicrosoftcomBackRoom

MiniCasts and DemoCastshttpoemmicrosoftcomBOBcasts

Webcasts and ChatshttpoemmicrosoftcomBOBwired

System Builder Discussion ForumhttpoemmicrosoftcomCommunity

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 19: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 1925

WINS Servers

WINS Serversprovide a centrallookup andregistration point for NetBIOS names

Clients must beconfigured with WINSserver addresses inorder to use WINS

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2025

WINS Server Replication

WINS is a multi-master

database

Two types of replication Pull replication

Configured to occur at

regular intervals

Push replication

Configured to occur after acertain number of changes

have been received

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2125

Name Resolution Troubleshooting

Ping Pinging a target by name will attempt hostname (DNS) resolution first

then NetBIOS (WINS) resolution if NetBIOS is enabled Whenever name resolution is failing ping the DNS and WINS servers by

IP address to make certain they are up and running Check the DNS and WINS services to make sure they are running on the

servers Nslookup

Use to manually perform iterative lookups on DNS servers Type ldquonslookuprdquo at a command prompt to access the tool in interactive

mode Type ldquoserver ltDNS server name or IP addressgtrdquo to change the DNS

server being queried A wide variety of other functions available by typing ldquoHelprdquo inside an

interactive Nslookup command session NBlookup

Use to see if names are being stored on individual WINS servers More information is available at http

supportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2225

Recommended Reading

TechNet httpwwwmicrosoftcomtechnetprodtechnolwindowsserver200

(choose ldquoNetwork Servicesrdquo | ldquoManaging Core NetworkServicesrdquo | ldquoDNSrdquo)

How to Troubleshoot Basic TCPIP Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us169790

Using NSLookupexe httpsupportmicrosoftcomdefaultaspxscid=kben-us200525

How to Troubleshoot Windows Server 2003 DNSDynamic Update Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us842200

NBLookupexe Command-line Tool httpsupportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2325

aka BOB Resources

BOBrsquos System Builder ResourceshttpoemmicrosoftcomBackRoom

MiniCasts and DemoCastshttpoemmicrosoftcomBOBcasts

Webcasts and ChatshttpoemmicrosoftcomBOBwired

System Builder Discussion ForumhttpoemmicrosoftcomCommunity

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 20: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2025

WINS Server Replication

WINS is a multi-master

database

Two types of replication Pull replication

Configured to occur at

regular intervals

Push replication

Configured to occur after acertain number of changes

have been received

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2125

Name Resolution Troubleshooting

Ping Pinging a target by name will attempt hostname (DNS) resolution first

then NetBIOS (WINS) resolution if NetBIOS is enabled Whenever name resolution is failing ping the DNS and WINS servers by

IP address to make certain they are up and running Check the DNS and WINS services to make sure they are running on the

servers Nslookup

Use to manually perform iterative lookups on DNS servers Type ldquonslookuprdquo at a command prompt to access the tool in interactive

mode Type ldquoserver ltDNS server name or IP addressgtrdquo to change the DNS

server being queried A wide variety of other functions available by typing ldquoHelprdquo inside an

interactive Nslookup command session NBlookup

Use to see if names are being stored on individual WINS servers More information is available at http

supportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2225

Recommended Reading

TechNet httpwwwmicrosoftcomtechnetprodtechnolwindowsserver200

(choose ldquoNetwork Servicesrdquo | ldquoManaging Core NetworkServicesrdquo | ldquoDNSrdquo)

How to Troubleshoot Basic TCPIP Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us169790

Using NSLookupexe httpsupportmicrosoftcomdefaultaspxscid=kben-us200525

How to Troubleshoot Windows Server 2003 DNSDynamic Update Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us842200

NBLookupexe Command-line Tool httpsupportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2325

aka BOB Resources

BOBrsquos System Builder ResourceshttpoemmicrosoftcomBackRoom

MiniCasts and DemoCastshttpoemmicrosoftcomBOBcasts

Webcasts and ChatshttpoemmicrosoftcomBOBwired

System Builder Discussion ForumhttpoemmicrosoftcomCommunity

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 21: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2125

Name Resolution Troubleshooting

Ping Pinging a target by name will attempt hostname (DNS) resolution first

then NetBIOS (WINS) resolution if NetBIOS is enabled Whenever name resolution is failing ping the DNS and WINS servers by

IP address to make certain they are up and running Check the DNS and WINS services to make sure they are running on the

servers Nslookup

Use to manually perform iterative lookups on DNS servers Type ldquonslookuprdquo at a command prompt to access the tool in interactive

mode Type ldquoserver ltDNS server name or IP addressgtrdquo to change the DNS

server being queried A wide variety of other functions available by typing ldquoHelprdquo inside an

interactive Nslookup command session NBlookup

Use to see if names are being stored on individual WINS servers More information is available at http

supportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2225

Recommended Reading

TechNet httpwwwmicrosoftcomtechnetprodtechnolwindowsserver200

(choose ldquoNetwork Servicesrdquo | ldquoManaging Core NetworkServicesrdquo | ldquoDNSrdquo)

How to Troubleshoot Basic TCPIP Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us169790

Using NSLookupexe httpsupportmicrosoftcomdefaultaspxscid=kben-us200525

How to Troubleshoot Windows Server 2003 DNSDynamic Update Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us842200

NBLookupexe Command-line Tool httpsupportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2325

aka BOB Resources

BOBrsquos System Builder ResourceshttpoemmicrosoftcomBackRoom

MiniCasts and DemoCastshttpoemmicrosoftcomBOBcasts

Webcasts and ChatshttpoemmicrosoftcomBOBwired

System Builder Discussion ForumhttpoemmicrosoftcomCommunity

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 22: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2225

Recommended Reading

TechNet httpwwwmicrosoftcomtechnetprodtechnolwindowsserver200

(choose ldquoNetwork Servicesrdquo | ldquoManaging Core NetworkServicesrdquo | ldquoDNSrdquo)

How to Troubleshoot Basic TCPIP Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us169790

Using NSLookupexe httpsupportmicrosoftcomdefaultaspxscid=kben-us200525

How to Troubleshoot Windows Server 2003 DNSDynamic Update Problems httpsupportmicrosoftcomdefaultaspxscid=kben-us842200

NBLookupexe Command-line Tool httpsupportmicrosoftcomdefaultaspxscid=kben-us830578

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2325

aka BOB Resources

BOBrsquos System Builder ResourceshttpoemmicrosoftcomBackRoom

MiniCasts and DemoCastshttpoemmicrosoftcomBOBcasts

Webcasts and ChatshttpoemmicrosoftcomBOBwired

System Builder Discussion ForumhttpoemmicrosoftcomCommunity

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 23: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2325

aka BOB Resources

BOBrsquos System Builder ResourceshttpoemmicrosoftcomBackRoom

MiniCasts and DemoCastshttpoemmicrosoftcomBOBcasts

Webcasts and ChatshttpoemmicrosoftcomBOBwired

System Builder Discussion ForumhttpoemmicrosoftcomCommunity

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 24: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2425

Other Great Resources General information about being a System Builder

httpOemmicrosoftcomSB101

Free e-mail support for preinstall issues sbstmicrosoftcom

System Builder Break-fix newsgroups httpoemmicrosoftcomscriptContentPageaspxPageID=555963

Other Managed support newsgroups httpsupportmicrosoftcom

Authorized Distributors

httpoemmicrosoftcomscriptdistributorpageaspx LicensingAnti-Piracy page

httpoemmicrosoftcomscriptcontentpageaspxPageID=552845

General sales and technical webcasts httpwwwmsreadinesscom

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY

Page 25: FINAL - MiniCast - Understanding Network Name Resolution

8152019 FINAL - MiniCast - Understanding Network Name Resolution

httpslidepdfcomreaderfullfinal-minicast-understanding-network-name-resolution 2525

copy 2005 Microsoft Corporation All rights reserved

This presentation is for informational purposes only MICROSOFT MAKES NO WARRANTIES EXPRESS OR IMPLIED IN THIS SUMMARY