Classes > RH131: Red Hat Linux System Administration

Goal:
An operator who can perform system administration tasks to a level where he/she can install, configure, and attach a new Red Hat Linux workstation to an existing network.

Audience:
Linux or UNIX users, who understand the basics of Red Hat Linux, that desire further technical training to begin the process of becoming a system administrator.

Prerequisites:

• RH033 Red Hat Linux Essentials or equivalent experience with Red Hat Linux.

Price: $2498

Duration: 4 days

Class Times:

• 9:00 a.m. - 5:00 p.m. Monday through Thursday - end time depends on class progress

Prepares for: RH253 Red Hat Linux Networking and Security Admin

Includes:

• 4 days intensive training on Red Hat Enterprise Linux 5
• Hands-on labs and exercises
• One workstation per student!
• Student materials, pre-assessment questionnaire, study aids, handouts
• Red Hat promotional items!

Unit 1 - Package Management

• Software as Packages
• About yum
• Installing and Removing with yum
• Querying with yum
• Configuring Additional yum Repositories
• About Red Hat Network
• Red Hat Network Server
• Red Hat Network Entitlements
• Red Hat Network Client
• About RPM Package Manager (RPM)
• Advanced Installation and Removal with rpm
• Advanced Queries with rpm
• Verifying with rpm
• Updating a Kernel RPM
• Hands-On Lab: Updating and installing software using yum
• Hands-On Challenge Lab: Using RPM

Unit 2 - System Initialization

• Boot Sequence Overview
• BIOS Initialization
• Starting the Boot Process: GRUB
• Bootloader Components
• Configuring GRUB
• Kernel Initialization
• init Initialization
• Run Levels
• System Initialization
• Standalone Service Initialization
• Non-Service Startup
• Transient Services
• Controlling Services
• Hands-On Lab: Changing the default run level
• Hands-On Lab: GRUB
• Hands-On Lab: Exploring xinetd Services

Unit 3 - Kernel Services

• The Linux Kernel
• Kernel Images and Variants
• Kernel Modules
• Utilizing and Configuring Kernel Modules
• The Chicken/Egg Module Problem
• The Initial RAM Disk (initrd)
• Firmware
• Kernel Configuration With /proc
• Kernel Configuration With sysctl
• Monitoring Processes and Resources
• Exploring Hardware Devices
• Accessing Drivers Through /dev
• Device Node Examples
• Managing Devices With udev
• Adding Files Under /dev
• Hands-On Lab: Turning off ping responses
• Hands-On Lab: Exploring processes, hardware and memory resources
• Hands-On Optional Lab: Install alternative kernel
• Hands-On Challenge Lab: Exploring an initial RAM disk

Unit 4 - System Services

• Console Access
• XOrg: The X11 Server
• XOrg Server Configuration
• Remote Access with SSH
• Remote X Sessions
• Remote Access with VNC
• Monitoring with System Logs
• syslog Configuration
• Automate tasks with cron
• System crontab Files
• Default Daily cron Jobs
• The anacron System
• Managing Printers with CUPS
• Accurate Time with Network Time Protocol
• Packet Filtering
• SELinux
• SELinux Policy: Troubleshooting
• Hands-On Lab: Using cron
• Hands-On Lab: CUPS printer administration
• Hands-On Challenge Lab: Configuring basic logging

Unit 5 - Filesystem Management

• Overview: Adding New Filesystems to the Filesystem Tree
• Master Boot Record
• Disk Partitioning
• Managing Partitions
• Making Filesystems
• Adjusting Filesystem Parameters
• Filesystem Labels
• Mounting Filesystem with mount
• mount By Example
• Mount Points and /etc/fstab
• Unmounting Filesystems
• Managing Virtual Memory
• Mounting NFS Filesystems
• Automounter
• Managing Removable Media
• Hands-On Lab: Create a New Filesystem
• Hands-On Lab: Mounting an NFS Filesystem
• Hands-On Challenge Lab: Automounting Data with autofs
• Hands-On Challenge Lab: Creating a New Swap Partition

Unit 6 - User Administration

• Adding a New User Account
• User Private Groups
• Modifying / Deleting user Accounts
• Password Aging Policies
• Administering Auxiliary Groups
• Switching Accounts
• sudo
• SUID and SGID Executables
• SGID Directories
• The Sticky Bit
• Default File Permissions
• Hands-On Lab: Creating Groups and Users
• Hands-On Lab: Setting Up Shared Directories

Unit 7 - Network Configuration

• Network Interfaces
• Driver Selection
• Speed and Duplex Settings
• IPv4 Interface Configuration
• Device Aliases
• Ethernet Channel Bonding
• Routing Table
• Default Gateway
• Custom Routes
• Verifying IP Connectivity
• Defining the Local Host name
• Local Resolver
• Remote Resolvers
• Network Configuration Utilities
• Transparent Dynamic Configuration
• Why IPv6?
• IPv6 on Red Hat Enterprise Linux
• Hands-On Lab: Setting Up a Static IP Address
• Hands-On Lab: Troubleshooting Slow DNS
• Hands-On Challenge Lab: Virtual IP Addresses and Static Routes

Unit 8 - Advanced User Administration

• Network Users
• Authentication Configuration
• Example: NIS Configuration
• Example: LDAP Configuration
• Additional Filesystem Permissions (ACLs)
• Viewing and Managing ACLs
• Configuring the Quota System
• Managing Quotas
• Hands-On Lab: Client-Side NIS Account Management
• Hands-On Lab: Client-Side LDAP Account Management
• Hands-On Lab: Working with ACLs
• Hands-On Challenge Lab: Implementing Quotas

Unit 9 - Advanced Filesystem Management

• Archiving Tools
• Archiving Tools: tar
• Archiving Tools: dump/restore
• Archiving Tools: rsync
• What is Software RAID?
• Software RAID Configuration
• Software RAID Testing and Recovery
• What is Logical Volume Manager (LVM)?
• Creating Logical Volumes
• Resizing Logical Volumes
• Logical Volume Manager Snapshots
• Using LVM Snapshots
• Hands-On Lab: Software RAID
• Hands-On Lab: Creating Logical Volumes with LVM
• Hands-On Lab: Extending a Filesystem
• Hands-On Challenge Lab: Reducing a Filesystem
• Hands-On Challenge Lab: Backing Up a Logical Volume with Snapshots

Unit 10 - Installation

• anaconda
• Accessing the Installer
• First Stage: Starting the Installation
• First State: Boot Media
• First Stage: Installation Method
• Second Stage: Installation Overview
• Configuring File Systems
• Alternative Partitioning
• Package Selection
• First Boot: Post-Install Configuration
• Install Automation with Kickstart
• Starting a Kickstart Installation
• Anatomy of a Kickstart File
• Kickstart: Commands Section
• Kickstart: Packages Section
• Kickstart: %pre, %post
• Creating a Network Installation Server
• Maintaining a Private Yum Repository
• Hands-On Lab: Installing Red Hat Enterprise Linux
• Hands-On Challenge Lab: Kickstart Installation

Unit 11 - Virtualization with Xen

• Virtualization with Xen
• Hardware Considerations
• Preparing Domain-0
• Domain-U Virtual Resources
• Domain-U Configuration
• Installing a New Domain-U
• Domain Management with virsh
• Activating Domain-Us on Boot
• Hands-On Lab: Installing the Xen Virtualization Environment
• Hands-On Lab: Creating and Accessing a Domain-U Virtual Machine

Unit 12 - Troubleshooting

• Method of Fault Analysis
• Fault Analysis: Gathering Data
• Things to Check: X
• Things to Check: Networking
• Things to Check: Boot Process
• Filesystem Problems During Boot
• Recovery Run-Levels
• Rescue Environment
• Rescue Environment Utilities
• Rescue Environment Details
• Hands-On Lab: Installing Software in Rescue Mode
• Hands-On Lab: Troubleshooting Practice
• Hands-On Challenge Lab: Repairing the MBR in the Rescue Environment
• Hands-On Challenge Lab: More Troubleshooting Practice