02 installing centos

7/29/2019 02 Installing CentOS

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Installing CentOS

Prepared by : Samantha Indika

MCT, ACS, CEH, CCNA, BCS (Certificate), MCS (SL),

MCITP, MCTS, MCSE + Security + Messaging,MCSA + Security + Messaging, MCP 1

If you are going to dual boot CentOS and Windows, first install Windows and keep

the necessary space to CentOS as un-partitioned and unformatted.

Insert CentOS DVD

Boot : abc (any letter to hold)

Remove Linux partitions on selected drives and create default layout

Encrypt System

Fresh/Blank HDD

C : Primary

D : Extended/LogicalE : Extended/Logical

C:

D: E:

Ms Windows XP

Extended

Primary

Logical

Review & modify partitions layout

Encrypted Password/passphrase : 12345678 (minimum 8 characters)Local

Security

Network

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aman

thaIndika


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Cont.. Installing CentOS




The following partitions will be created during automatic partitioning

1. Swap partition (virtual)

To improve the performance of the OS (Virtual Memory)

swap

2. Boot Partition

To keep boot files and kernel

/boot and ext3

3. Root Partition

To install the OS

To install Software

To keep users personal data

/ and ext3

Select Drive

1. hda/sda2. hdb/sdb

3. hdc/sdc

4. hdd/sddS

aman

thaIndika


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Conti... Installing CentOS




Microsoft : NTLDR

CentOS/Linux : GRUB (Grand Unified Boot Loader)

MBR Default Boot Loader

(Master Boot Record)

NTLDR GRUB

Win CentOS

Use a boot loader password : password

Different Password (Adv n Dis) Hostname

Eg: srv1.XXXXXXX.local

Region

Asia/Colombo

UTC Universal Time Coordinator

Linux : Root User Name | Microsoft : Administrator User Name

Root Password : 123456

Desktop Gnome | Desktop - KDE

CentOS 2590 software modules

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thaIndika


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Additional packages to select apart to the defaults

Desktop environment * KDE

Development * Development Tools

* Development Libraries

Base System * Administration Tools

* Java

* System Tools

Language * Tamil Support

* Sinhala SupportS

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thaIndika


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Boot Sequence

1. GRUB Boot Loader

5 seconds timeout to choose the OS otherwise default OS will be loaded2. HDD Encrypted password

LUKS passphrase (Linux Unified Key System)

3. System daemons (services)

Will be started

4. Setup agent wizard

1st time only

5. GDM (Gnome Display Manager

GUI Login

6. Desktop Environment

Gnome or KDES

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thaIndika


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Prepared by : Samantha Indika MCT, ACS, CEH,

CCNA, BCS (Certificate), MCS (SL), MCITP, MCTS,

MCSE + Security + Messaging, MCSA + Security +Messaging, MCP 6

Setup Agent Wizard

1. Firewall

Disable at this movement2. Linux : SELinux (Security Enhance Linux)

Controls access from Subject (Users & Software)to Objects (File & Folders)

Enforcing Prevent & Report

Permissive Only Reported

Disable No prevent or report

Microsoft : UAC (User Access Control)

3. Kdump

For troubleshoot (Memory Dump, Blue Screen)

Require minimum of 1GB RAM (System Memory)

4. Date and Time

Network Time Protocol

Require Public IP for ntp.org

5. Create User

User name : your name

Password : 123456

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thaIndika


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6. Sound Card

Drivers are not oriented for Brand

Drivers are oriented for chipset7. Additional CDs

Extra Software

Gnome (Gnu Network Object Model Environment)

KDE ( K Desktop Environment)

- Access points to other partitions

and removable media

- Ex : /boot - Sub mount point

/

Directories or Folders

Mount Points

File System (Hard Disk Drive)

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thaIndika


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/home/user1

/

[home]

/tmp

Folder Access (Read/Write)

[user1]

[tmp]

KDE DesktopLoging > Sessioin > KDE > User name & Password

S

aman

thaIndika

02 installing centos

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