Installing sylib

By,

Tolga Ciftci

Main Aims

• Installing the website with the setup file– With SQL Express Server and user

instancing.

Setup files

– 2 setup files for 2 setup types.– Precompiled setup

• The sources are precompiled.• No source files for web pages.• In folder “sylibPrecompSetup”• Advantages

– Making It Harder for Prying Eyes

• Disadvantages– Harder to update the site– Preparing an updateable precompiled web site is

possible. But this is not updateable.

Setup files

• Setup– Not precompiled– In folder “sylibSetup”– Advantages

• Easier to prepare• Can change files in place with notepad.

– Disadvantages• Less secure

Setup files

• They are installed the same way

About User Instances and SQLExpress

• Gives “database admin rights” to non-admin processes/users for database files that they can access.– Asp.Net web application is not admin; default

user name “Network Service” in sy machines.

• An instance of SQL Express server with client’s rights and name created.– See

http://msdn2.microsoft.com/en-us/library/bb264564.aspx for a discussion

About User Instances and SQLExpress

• The web site expects an SQL Express server instance with “user instance” option enabled and with instance name SQLExpress.– Default installation of SQL Express has this

instance name.– Can check by trying to connect with “SQL

Server Management Studio”. • Express edition of management studio will also

work.

Connecting to SQL Express

• Open Management studio– Enter “.\SQLExpress”

in server name. • “.\” server addres.

Means localhost• SQLExpress: Server

instance name

– Authentication is “Windows Authentication”

• Press connect

Management Studio

Object Explorer

SQL query editor connected to (local)\

SQLExpress

Execute button

Results window

Checking “User Instances” option

• In Management Studio object explorer window, right click on the server name and choose new query.

• In the SQL editor window write “sp_configure 'user instances enabled‘”

• Press execute button

Checking “User Instances” option

• If the results window shows a row like the one on the left, “user instances” is enabled.

• In the other case execute– sp_configure 'user

instances enabled','1‘;

RECONFIGURE;

GO

• Change “1” with “0” to disable

Checking “User Instances” option

• For Summer 2007 SQLServer express seems to be installed correctly on sy machines.

• You don’t need to check this for summer 2007

Installing the site

• Double click on the setup exe program

• SylibSetup dialog appears.

• Click “Next >” button

Installing the site

• On the next windows• Choose site• In the virtual directory

write a meaningful name that wont clash with other people using the same machine– For example sylibsy01a– I used sylibteam2007 in

this example.

• Click “Next >” button

Installing the site

• Wait for completion of setup

• Click on the “Close” button.

Checking installation directory

• Go to “c:\Inetpub\wwwroot\<the virtual directory name from setup>– In our example this will be “c:\Inetpub\

wwwroot\sylibteam2007”

• Now we can check whether site works or not– Browse to “http://localhost/<the virtual

directory name from setup>”

Possible errors

• In some sy machines the .Net 2.0 is not registered in the ISS.– This gives an error that says “Parser error message:

Unrecognized attribute xmlns” in web browser.– See http://msdn2.microsoft.com/en-us/asp.net/aa336670.aspx

for an explanation and solution– Basically execute aspnet_regiis executable from: %windows root

directory%\Microsoft.NET\Framework\%version of the .NET Framework%\aspnet_regiis -r

• In sy machines this is “C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\ aspnet_regiis -r”

– The “-r” option associates all web applications with ASP.Net 2.0. if this is not OK for your setup use “-ir” option. You can look at http://weblogs.asp.net/owscott/archive/2006/01/26/436607.aspx

Changing permission of database files

• Since SQL Server express uses user instancing while attaching the files, the process attaching the database files need to have read-write access to the files.– The process attaching DB files is the ISS

application pool which uses identity “Network Service”

– Giving “Network Service” read-write access to these files solves the “read-only database” file problem.

Changing Permissions of DB files

• The database files are under “App_Data” subfolder of the application folder.– The file extensions are;

“.mdf” and “.ldf”.

• Select all of these files. – Right click and choose

properties – In the upcoming properties

dialog go to security tab

Changing Permissions of DB files(Continued)

1. Press Add button under “Groups or User names” list

2. “Select users or groups” dialog box comes up.a. In the name field, write

“network service”

b. For the location field, choose the computer you are connected to.

c. Click OK.

1

2

a

b

2

b

a

2

b

a

2

b

Changing Permissions of DB files

• Give read,write and execute rights to “Network Service”– Execute right may not

be needed.

• Only “Administrators” and “Network Service” in the users list seems enough.

Extra Information

• In vista the installation program may not work right out of the box. This maybe due to the fact that VBScript is not registered. – See

http://blogs.msdn.com/fzandona/archive/2007/03/30/wm-6-sdk-install-issue-common7-ide-projecttemplates.aspx for a similar issue and possible solution. We do not recommend or reject this solution.

Extra Information

• At times you may want to move/copy/delete the database file and not able to do it due to the fact they are used by another process (probably SQL Server Express)– Waiting for some amount of time or restarting the

machine may work.– Process explorer from Microsoft maybe helpful:

http://www.microsoft.com/technet/sysinternals/utilities/ProcessExplorer.mspx

• Note that closing file handles using this tool may cause some data corruption or damage the DB files.

References

• The references shown in this presentation are obtained by googling and are not necessarily from sources we know.