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Linux System Administration - 55187

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Linux System Administration - 55187 Course Outline

About this course
This four-day instructor-led course is designed to provide students with the necessary skills and abilities to work as a professional Linux system administrator. The course covers how to administer, configure and upgrade Linux systems running one of the three major Linux distribution families: Red Hat, SUSE, Debian/Ubuntu, how to master the tools and concepts you’ll need to efficiently build and manage an enterprise Linux infrastructure. It also covers how to use state-of-the-art system administration techniques in real-life scenarios via practical labs.

This course prepares the user for the Linux Foundation Certified System Administrator (LFCS) exam.

Audience profile
This course is intended for students with a basic knowledge of Linux and its most common utilities and text editors. For users with no prior experience we suggest the free ‘Introduction to Linux’ course available on edx.org.

Before attending this course, students must have:
Knowledge of the basic components of Linux.
Familiarity with text editors.
Working knowledge of Bash scripting.

At course completion
After completing this course, students will be able to:
Perform essential Linux commands such as installation, searches and manipulating files.
Operate running Linux systems by managing the boot process, scheduling jobs, updating the system, monitoring system performance and managing security.
Manage users and groups by adding/deleting/modifying, configuring LDAP and PAM, modifying user processes and resources.
Ensure network performance via configuration, monitoring, tunnelling and routing of traffic.
Configure services such as DNS, shares, SSH and SELinux/AppArmor as well as servers for DHCP and HTTP.
Manage system storage by using partitions, logical volumes, phsyical volumes, ACLs, quotas and clustering.

Course Outline

Module 1: System Startup and Shutdown
This module explains how to manage startup and shutdown processes in Linux.
Understanding the Boot Sequence
The Grand Unified Boot Loader
GRUB Configuration Files
System Configuration Files in /etc
The init Process
SysVinit Startup
chkconfig and service
Shutting down/Rebooting the System
Lab : Chapter Labs
Boot into non-graphical mode using GRUB
Add a new startup service with System V
Add a new startup services with system
Run Shutdown vs. Halt vs. Reboot

Module 2: Linux Filetree System Layout
This module explains how the Linux Filesystem is organized and points out the key directories and their roles.
Data Distinctions
FHS Linux Standard Directory Tree
root (/) directory
/lib and /lib64
Lab : Chapter Labs
Change size of the default directories
Touring the /proc Filesystem

Module 3: Kernel Services and Configuration
This module explains how the Linux Kernel is configured, how the modules and utilities work, the function of sysctl and udev and Device Management.
Kernel Overview
Kernel Configuration
Kernel Modules
Module Utilities
Module Configuration
udev and Device Management
Lab : Chapter Labs
Manipulating system tunables with sysctl.
Changing the maximum process ID.
Working with Kernel modules.
Working with udev

Module 4: Partitioning and Formatting Disks
This module explains how to work with disks in Linux by naming, partitioning and sizing them.
Common Disk Types
Disk Geometry
Naming Disk Devices
Sizing up partitions
Partition table editors
Lab : Chapter Labs
Using a file as a disk partition image
Partioning a Disk Image file
Using losetup and parted
Partitioning a real hard disk

Module 5: Linux Filesystems
This module explains how to work with Linux Filesystems, starting with the understanding that Linux treats everything as a file. IT covers Virtual filesystem (VFS), Filesystem Usage and Attributes, Major types (ext4, XFS, btrfs) and how to create, format, mount, swap and repair Filesystems.
Some Notes About Filesystems
Virtual Filesystem (VFS)
Filesystem Concepts
Disk and Filesystem Usage
Extended Attributes
Creating and formatting filesystems
Checking and Repairing Filesystems
Mounting filesystems
Filesystem Quotas
Lab : Chapter Labs
Defragmenting a system.
Modifying Filesystem parameters using tune2fs.
Working with file attributes.
Mounting options.
Managing swap space.
Filesystem quotas.
Working with XFS
Working with btrfs

Module 6: RAID and LVM
This module explains how to work with RAID and Logical Volume Management (LVM).
RAID Levels
Software RAID Configuration
Logical Volume Management (LVM)
Volumes and Volume Groups
Working with Logical Volumes
Resizing Logical Volumes
LVM Snapshots
Lab : Chapter Labs
Creating a RAID device
Creating Logical Volumes

Module 7: Processes
This module explains how to work with Linux processes. It begins with an overview of what processes are and how they work before procreding to illustrate how to create, monitor, prioritize and limit processes.
Programs and Processes
Process States
Execution Modes
Creating Processes
Process Limits
Process Monitoring
Lab : Installing and Configuring Windows 7
Controlling processes with ulimit
Using ps and top
Monitoring process states
Examining signal priorities and execution

Module 8: Package Management Systems
This module explains how to work with the major package management systems used in Linux distributions. Covers both RPM and DKPG as well as the use of version control systems such as git.
Software Packaging Concepts
RPM (Red Hat Package Manager)
DPKG (Debian Package)
Revision Control Systems
Lab : Chapter Labs
Using RPM
Rebuilding the RPM database
Using DKPG
Version control with git

Module 9: Package Installers
This module explains how to use the major package installers, including yum, zypper and APT. It also explains the role that package installers play in automating software management and dealing with dependencies.
Package Installers
Lab : Chapter Labs
Basic yum commands
Using yum to find information about a package
Managing groups of packages with yum
Adding a new yum repository
Basic zypper commands
Using zypper to find information about a package
Basic APT commands
Using APT to find information about a package
Managing groups of packages using APT

Module 10: User and Group Account Management
This module explains how to work with users and groups in Linux. It also covers how to work with passwords, restricted shells, the root account, Pluggable Authentication Modules (PAM), LDAP and SSH.
User Accounts
Restricted Shells and Accounts
The root Account
Group Management
PAM (Pluggable Authentication Modules)
Authentication Process
Configuring PAM
LDAP Authentication
File Permissions and Ownership
Lab : Chapter Labs
Working with user accounts
Working with groups
Configuring PAM
Using chmod

Module 11: Backup and Recovery Methods
This module explains how to backup data in Linux. It covers the tools that are used for backup and compression as well as for moving and copying files and also for restoring files.
Backup Basics
Compression: gzip, bzip2 and xz and Backups
dump and restore
Backup Programs
Lab : Chapter Labs
Using tar for backup
Using cpio for backup
Using rsync for backup

Module 12: Networking
This module explains how to conduct basic networking in Linux. It covers IP addresses, Hostnames, Network Interfaces, Routing and Name Resolution.
IP Addresses
Configuring Network Interfaces
Name Resolution
Network Diagnostics
Lab : Chapter Labs
Static configuration of a network interface
Adding a static hostname
Adding a network interface alias

Module 13: Firewalls
This module explains how to work with firewalls in Linux. It covers both command line tools and GUI tools as well as firewalld. Zones and source management are discussed, as is service and port management.
Source Management
Service and Port Management
Lab : Chapter Labs
Installing firewalld
Examining firewall-cmd
Adding services to a zone
Using the firewall GUI

Module 14: Local System Security
This module explains how to secure systems against both internal and external threats. It covers how to identify risks and provides guidance on how to decide what protection is appropriate. Finally, it covers the basic types of security available (physical, filesystem, and security modules e.g. SELinux).
Local System Security
Creating a Security Policy
Updates and Security
Physical Security
Filesystem Security
Linux Security Modules
Lab : Chapter Labs
Using SELinux
Security and mount options
Using umask
Usint setuid and scripts

Module 15: Basic Troubleshoot and System Rescue
This module explains how to conduct troubleshooting in Linux as well as likely sources of issues. It covers basic concepts in system rescue and recovery and how to identify corrupted filesystems.
Troubleshooting Overview
Things to Check: Networking
Boot Process Failures
Filesystem Corruption and Recovery
Virtual Consoles
Rescue Media and Troubleshooting
System Rescue and Recovery
Lab : Chapter Labs
Preparing to use Rescue/Recover media
Recovering from a corrupted GRUB configuration
Recovering from a password failure
Recovering from partition table corruption
Recovering using the install image

View outline in Word


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