Course #:GL134

Linux Systems Administration II Training

This GL134 course is designed to follow an identical set of topics as the Red Hat® RH134, RH135 courses with the added benefit of very comprehensive lab exercises and detailed lecture material.

The Red Hat Enterprise Linux (RHEL) system administration topics covered in this course along with the GL124 course cover the certification objects of the Red Hat Certified System Administrator (RHCSA) exam.

The topics covered include automating installation with Kickstart, intermediate and advanced level command line building blocks and tools, troubleshooting, network file sharing server configuration, connecting to a directory service, managing advanced security settings, maintenance tasks, and kernel tuning.

Red Hat® is a registered trademark of Red Hat, Inc. and its use by Guru Labs, L.C. does not imply association or sponsorship by Red Hat, Inc.


Completion of GL124 "Linux Systems Administration I"


4 Days

Outline of Linux Systems Administration II Training

1. Automated Installations of Red Hat Enterprise Linux

  • Kickstart
  • Anaconda: An Overview
  • Anaconda: Booting the System
  • Anaconda: Common Boot Options
  • Anaconda: Loading Anaconda and Packages
  • Anaconda: Storage Options
  • Anaconda: Troubleshooting

Lab Tasks

  • Automating Installation with Kickstart

2. Accessing the Command Line

  • Logging In
  • Secure Shell
  • ssh and sshd Configuration
  • Accessing Remote Shells
  • Transferring Files
  • Alternative sftp Clients
  • Switching User Contexts
  • sudo
  • Gathering Login Session Info

Lab Tasks

  • Login and Discovery
  • Switching Users With su
  • Introduction to ssh and scp

3. Intermediate Command Line Tools

  • Filesystem Links
  • Archives with tar
  • Archives with cpio
  • The gzip Compression Utility
  • The bzip2 Compression Utility
  • The XZ Compression Utility
  • The PKZIP Archiving/Compression format
  • Text Editing
  • vi and Vim
  • Learning vi
  • Basic vi
  • Intermediate vi

Lab Tasks

  • Archiving and Compression
  • Text Editing with Vim

4. Regular Expressions, Pipelines, and I/O Redirection

  • Searching Inside Files
  • Regular Expression Overview
  • Regular Expressions
  • RE Quantifiers
  • RE Parenthesis
  • Communication Channels
  • File Redirection
  • Piping Commands Together

Lab Tasks

  • Pattern Matching with Regular Expressions
  • Extended Regular Expressions
  • Using Regular Expressions With sed
  • Text Processing

5. Network Configuration and Troubleshooting

  • IPv4 Fundamentals
  • TCP/UDP Fundamentals
  • Linux Network Interfaces
  • Ethernet Hardware Tools
  • Network Configuration with ip Command
  • Configuring Routing Tables
  • IP to MAC Address Mapping with ARP
  • Starting and Stopping Interfaces
  • NetworkManager
  • DNS Clients
  • DHCP Clients
  • system-config-network-{tui,cmd}
  • Network Diagnostics

Lab Tasks

  • Network Discovery
  • Basic Client Networking
  • Troubleshooting Practice: Networking

6. Managing Simple Partitions and Filesystems

  • Partitioning Disks with fdisk
  • Partitioning Disks with parted
  • Filesystem Creation
  • Filesystem Maintenance
  • Linux Unified Key Setup (LUKS)
  • Swap

Lab Tasks

  • Creating and Managing Filesystems
  • Hot Adding Swap
  • LUKS-on-disk format Encrypted Filesystem

7. Managing Flexible Storage with the Logical Volume Manager (LVM)

  • Logical Volume Management
  • Implementing LVM
  • Creating Logical Volumes
  • Manipulating VGs & LVs
  • Advanced LVM Concepts
  • system-config-lvm

Lab Tasks

  • Creating and Managing LVM Volumes

8. Access Network File Sharing Services; NFS and CIFS

  • File Sharing via NFS
  • NFSv4
  • NFS Clients
  • NFS Server Configuration
  • AutoFS
  • AutoFS Configuration
  • Accessing Windows/Samba Shares from Linux

Lab Tasks

  • Using autofs
  • NFS Server Configuration

9. Managing User Accounts

  • User and Group Concepts
  • User Administration
  • Modifying Accounts
  • Group Administration
  • Password Aging

Lab Tasks

  • User and Group Administration

10. Network User Accounts with LDAP

  • Manual DS Client Configuration
  • system-config-authentication
  • System Security Services Daemon (SSSD)

Lab Tasks

  • Using LDAP for Centralized User Accounts

11. Controlling Access to Files

  • File Ownership
  • Default Group Ownership
  • File and Directory Permissions
  • File Creation Permissions with umask
  • Changing File Permissions
  • SUID and SGID on files
  • SGID and Sticky Bit on Directories
  • User Private Group Scheme
  • File Access Control Lists
  • Manipulating FACLs
  • Viewing FACLs
  • Backing Up FACLs

Lab Tasks

  • File and Directory Ownership and Permissions
  • User Private Groups
  • Using Filesystem ACLs

12. Managing SELinux

  • SELinux Security Framework
  • SELinux Modes
  • SELinux Commands
  • Choosing an SELinux Policy
  • SELinux Booleans
  • Permissive Domains
  • SELinux Policy Tools

Lab Tasks

  • Exploring SELinux Modes
  • SELinux File Contexts

13. Installing and Managing Software

  • Managing Software
  • RPM Features
  • RPM Architecture
  • RPM Package Files
  • Working With RPMs
  • Querying and Verifying with rpm
  • Updating the Kernel RPM
  • Managing Software Dependencies
  • Using the YUM command
  • YUM package groups
  • Configuring YUM
  • Yum Plugins
  • YUM Repositories

Lab Tasks

  • Managing Software with RPM
  • Managing YUM Repositories
  • Using YUM
  • Creating a Custom RPM Repository

14. Analyzing and Storing Logs

  • System Logging
  • Rsyslog
  • /etc/rsyslog.conf
  • Log Management
  • Log Anomaly Detector

Lab Tasks

  • Setting up a Full Debug Logfile
  • Remote Syslog Configuration

15. Managing Processes

  • Automating Tasks
  • at/batch
  • cron
  • The crontab Command
  • crontab Format
  • /etc/cron.*/ Directories
  • Anacron
  • Viewing Processes
  • Managing Processes
  • Tuning Process Scheduling

Lab Tasks

  • Creating and Managing User Cron Jobs
  • Adding System cron Jobs

16. Boot Process and SysV Init

  • Booting Linux on PCs
  • GRUB Configuration
  • Boot Parameters
  • Initial ramdisk
  • /sbin/init
  • System Init Styles
  • Linux Runlevels
  • /etc/inittab
  • /etc/rc.d/rc.sysinit
  • Runlevel Implementation
  • System Configuration Files
  • RHEL6 Configuration Utilities
  • Typical SysV Init Script
  • The /etc/rc.local File
  • Managing Daemons
  • Controlling Service Startup
  • Shutdown and Reboot

Lab Tasks

  • Managing Services With chkconfig
  • Boot Process
  • Introduction to Troubleshooting Labs
  • Troubleshooting Practice: Boot Process

17. Tuning and Maintaining the Kernel

  • Kernel Modules
  • Configuring Kernel Components and Modules
  • Handling Module Dependencies
  • Configuring the Kernel via /proc/

Lab Tasks

  • Adjusting Kernel Options


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