Difference between revisions of "CentOS Essentials"

1. About CentOS Essentials
   
   
2. Performing a Clean Disk CentOS Installation
   • Trying CentOS without Installing
   • Obtaining the CentOS Installation Media
   • Installing CentOS
   • Partitioning a Disk for CentOS
   • Configuring Networking Settings
   • Timezone and the Root Password
   • Package Selection
   • The Physical Installation
   • Final Configuration Steps
     
     
3. Performing a CentOS Network Installation
   • CentOS Network Installation Requirements
   • Configuring the Network Installation
   • Starting the CentOS Network Installation
     
     
4. Installing CentOS with Windows in Dual Boot Environment
   • Partition Resizing
   • Shrinking a Windows XP Partition
   • Choosing an Operating System at Boot Time
   • Editing the CentOS Boot Menu
   • Accessing the Windows Partition from Linux
     
     
5. Allocating a Windows Disk Partition to CentOS
   • Deleting the Windows Partition from the Disk
   • Formatting the Unallocated Disk Partition
   • Editing the Boot Menu
   • Mounting the New Partition
     
     
6. Logging into the CentOS GNOME Desktop
   
   
7. Configuring CentOS GNOME Screen Resolution and Multiple Monitors
   • Configuring the Display Resolution
   • Configuring Multiple Monitors
     
     
8. A Guided Tour of the CentOS GNOME Desktop
   • The CentOS GNOME Desktop
   • The Desktop Background
   • The Desktop Panels
     
     
9. Changing the CentOS GNOME Desktop Background
   • Changing the CentOS GNOME Desktop Background
   • Selecting a Background from the Wallpaper List
   • Creating a Solid or Graded Background
   • Specifying a Background Image
     
     
10. Installing and Customizing CentOS Desktop Themes
    • What is a Desktop Theme?
    • Changing the CentOS Desktop Theme
    • Downloading and Installing a Theme
    • Creating a Custom Theme Package
      
      
11. Configuring CentOS Desktop Fonts
    • Font Options on CentOS
    • Changing Font Settings
    • Font Rendering Settings
    • Advanced Font Rendering
    • Accessing the System Font Folder
      
      
12. Configuring the CentOS Desktop Panels
    • What are Desktop Panels
    • Changing the Position of a Panel
    • Adding and Deleting Desktop Panels
    • Changing the Appearance of a Desktop Panel
    • Adding Items to a GNOME Desktop Panel
    • Adding Menus to a Panel
    • Changing the Number of CentOS Desktop Workspaces
      
      
13. Configuring the CentOS Desktop Menu System
    • Customizing a CentOS Desktop Menu
    • Moving Menu Items
    • Adding and Deleting a Menu Item
      
      
14. Browsing My Computer, Files and Folders on the CentOS Desktop
    • Accessing Nautilus
    • Nautilus and the Computer Icon
    • Adding Emblems to Files and Folders
    • Changing File and Folder Permissions
    • Renaming and Deleting Files and Folders
      
      
15. Configuring the CentOS GNOME File Manager
    • Displaying Icons or Lists
    • Configuring the List View
    • Configuring the Icon View
      
      
16. CentOS Startup Programs and Session Configuration
    • Session Managed and Non-Session Managed Programs
    • Understanding Sessions
    • Creating a New Session
    • Configuring Session Preferences
    • Configuring the Current Session
    • Configuring Startup Programs
      
      
17. CentOS Desktop Keyboard Shortcuts
    • Viewing Keyboard Shortcuts
    • Changing a Shortcut
    • Disabling a Keyboard Shortcut
      
      
18. Managing CentOS Users and Groups
    • Adding a New User to a CentOS System
    • Editing the Properties of a User
    • Deleting a User from a CentOS System
    • Adding a New Group to a CentOS System
    • Modifying a CentOS Group
    • Deleting a Group from a CentOS System
      
      
19. Configuring CentOS Runlevels and Services
    • Understanding CentOS Runlevels
    • Understanding CentOS Services
    • CentOS Runlevels Descriptions
    • Configuring the Default CentOS Runlevel
    • Changing the Current Runlevel from within a Running CentOS System
    • Identifying Services that Start at Each Runlevel
    • Changing the Services for a Runlevel
      
      
20. Basic CentOS Firewall Configuration
    • Configuring a Basic CentOS Firewall
    • Enabling and Disabling the Firewall
    • Configuring Firewall Port Settings
    • Configuring Other Ports
    • Firewall Configuration from a Terminal using lokkit
    • Trusted Interfaces
    • Masquerading
      
      
21. Remote Access to the CentOS Desktop
    • Installing Remote Desktop Support
    • Activating Remote Desktop Access
    • Secure and Insecure Remote Desktop Access
    • Firewall Configuration
    • Accessing a Remote CentOS Desktop using vncviewer
    • Accessing a Remote CentOS Desktop from a Windows System
    • Establishing a Secure Remote Desktop Session
    • Establishing a Secure Remote Desktop Session from a Windows System
    • Creating Additional Desktops
    • Shutting Down a Desktop Session
    • Configuring the Remote Desktop Environment
      
      
22. Configuring CentOS Remote Access using SSH
    • Installing SSH on an CentOS System
    • Configuring the CentOS Firewall to Allow SSH Connections
    • Using SSH on CentOS
    • Copying files using SSH
    • Disabling the SSH Server
      
      
23. Displaying CentOS Applications Remotely (X11 Forwarding)
    • Requirements for Remotely Displaying Applications
    • Remotely Displaying a CentOS Application
    • Trusted X11 Forwarding
    • Compressed X11 Forwarding
      
      
24. Using NFS to Share CentOS Folders with Remote Linux and UNIX Systems
    • Ensuring NFS Services are Running on CentOS
    • Configuring the CentOS Firewall to Allow NFS Traffic
    • Specifying the Folders to be Shared
    • Accessing Shared CentOS Folders
    • Mounting an NFS Filesystem on System Startup
    • Unmounting an NFS Mount Point
      
      
25. Sharing CentOS Files with Remote Windows Systems
    • Samba and Samba Client
    • Installing Samba on a CentOS System
    • Starting the Samba Service on CentOS
    • Configuring the CentOS Firewall to Enable Samba
    • Configuring Samba Users and Resource Sharing
    • Accessing Windows Shares from CentOS
      
      
26. Configuring a CentOS Based Web Server
    • Requirements for Configuring a Web Server
    • Installing the Apache Web Server on CentOS
    • Starting the Apache Web Server
    • Testing the Web Server
    • Configuring the Apache Web Server for Your Domain
    • Web Server and Firewall Issues
      
      
27. Configuring a CentOS Postfix Email Server
    • The structure of the Email System
    • Mail User Agent
    • Mail Transfer Agent
    • Mail Delivery Agent
    • SMTP
    • Configuring a CentOS Email System
    • Postfix Pre-Installation Steps
    • Installing Postfix on CentOS
    • Configuring Postfix
    • Starting Postfix on a CentOS System
      
      
28. Configuring a CentOS Mail Client (Evolution)
    • An Overview
    • Configuring Evolution to Receive Mail from a Local Postfix Server
    • Configuring Evolution to Receive Mail from a Remote POP Server
    • Configuring Evolution to Send Mail
      
      
29. Sending and Receiving GMail Email via POP on a CentOS System
    • Configuring a GMail Account for POP Access
    • Configuring Evolution to Receive GMail Messages
    • Configuring Evolution to Send GMail Messages
      
      
30. Installing and Configuring CentOS Xen Virtualization
    • Full Virtualization vs. Para-Virtualization
    • Checking Xen Hardware Compatibility
    • Preparing CentOS for Xen Virtualization
    • Building a CentOS Xen Guest System
      
      
31. Using Xen Full Virtualization to Run Windows on CentOS
    • Hardware Requirements for Xen-based Full Virtualization on CentOS
    • Preparing the Installation Image
    • Creating the New Virtual Machine
    • Configuring Xen Virtualization Method
    • Selecting Installation Media
    • Configuring Storage
    • Configuring Network Access
    • CPU and Memory Allocation
    • Creating and Starting the New Xen Virtual Machine
      
      
32. Managing and Monitoring CentOS based Xen Guest Systems
    • Starting and Stopping Xen Guest Systems
    • Pausing a Xen Guest Operating System
    • Changing Xen Guest Operating System Settings
    • Monitoring Virtual Machine Performance
      
      
33. Configuring a New CentOS Xen Virtual Network
    • CentOS Xen Guest Networking Options
    • Identifying the Settings of an Existing CentOS Xen Virtual Network
    • Creating a New Xen Virtual Network on an CentOS Host
    • Assigning the New Virtual Bridge during Virtual Machine Creation
    • Changing an Existing Virtual Machine to Use a new Virtual Network
      
      
34. Managing Xen on CentOS using the xm and virsh Command-line Tools
    • xm Command-line vs virsh Shell
    • Listing Guest System Status
    • Starting a Xen Guest System
    • Connecting to a Running Xen Guest System
    • Shutting Down a Guest System
    • Pausing and Resuming a Guest System
    • Suspending and Resuming a Guest OS
    • Saving and Restoring Xen Guest Systems
    • Rebooting a Guest System
    • Configuring the Memory Assigned to a Xen Guest OS
    • Migrating a Domain to a Different Host
      
      
35. Installing KVM Virtualization on CentOS
    • KVM Hardware Requirements
    • 32-bit Support for KVM on CentOS 5
    • Preparing CentOS for KVM Virtualization
    • Verifying the KVM Installation
      
      
36. Creating a CentOS KVM Networked Bridge Interface
    • CentOS Virtual Networks and Network Bridges
    • Creating a Network Bridge
    • Configuring a CentOS Firewall for a Network Bridge
    • Configuring a Virtual Machine to use the Network Bridge
      
      
37. Creating a CentOS KVM Virtual Machine
    • Starting the Virtual Machine Manager
    • Creating the New CentOS based KVM Virtual Machine
    • Configuring the Installation Method
    • Configuring the KVM Virtual Storage
    • Configuring KVM Network Settings
    • Configuring KVM Virtual Machine Memory and CPU Settings
    • Starting the New KVM Virtual Machine
      
      
38. Installing a CentOS KVM Guest OS from the Command-line (virt-install)
    • Running virt-install to Build the KVM Guest System
    • An Example CentOS virt-install Command
    • Starting the Virtual Machine from the Command Line
      
      
39. Managing and Monitoring CentOS based KVM Guest Systems
    • Starting and Stopping CentOS based KVM Guest Systems
    • Pausing a KVM Guest Operating System
    • Changing KVM Virtual Guest System Settings
    • Monitoring Virtual Machine Performance
    • Monitoring Host Performance
      
      
40. Adding a New Disk Drive to a CentOS System
    • Mounted File Systems or Logical Volumes
    • Getting Started
    • Finding the New Hard Drive in CentOS
    • Creating Linux Partitions
    • Creating a File System on a CentOS Disk Partition
    • Mounting a File System
    • Configuring CentOS to Automatically Mount a File System
      
      
41. Adding a New Disk to a CentOS Volume Group and Logical Volume
    • An Overview of Logical Volume Management (LVM)
    • Volume Group (VG)
    • Physical Volume (PV)
    • Logical Volume (LV)
    • Physical Extent (PE)
    • Logical Extent (LE)
    • Getting Information and Logical Volumes
    • Adding Additional Space to a CentOS Volume Group from the Command Line
      
      
42. Adding and Managing CentOS Swap Space
    • What is Swap Space?
    • Recommended Swap Space for CentOS
    • Identifying Current Swap Space Usage
    • Adding a Swap File to a CentOS System
    • Adding Swap to a CentOS LVM Swap Volume
    • Adding Swap Space to a CentOS Volume Group
      
      

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