55187 Linux System Administration

This 4-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.

Course fee:

Usual Price: S$2500 (excluding GST)

Overview

This 4-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, which is also a required component of the MCSA: Linux on Azure Certification.

Prerequisites

Participants who wish to take up this course should meet the following prerequisites:

  • Knowledge of the basic components in Linux
  • Familiarity with text editors
  • Working knowledge of Bash scripting

Who Should Attend?

This course is intended for participants with a basic knowledge of Linux and its most common utilities and text editors.

Course Outline

  • 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
  • Upstart
  • systemd
  • Shutting down/Rebooting the System

Lab:  Chapter Labs

  • Data Distinctions
  • FHS Linux Standard Directory Tree
  • Root (/) directory
  • /bin
  • /dev
  • /etc
  • /home
  • /lib and /lib64
  • /media
  • /mnt
  • /opt
  • /proc
  • /sys
  • /tmp
  • /usr
  • /var
  • /run

Lab: Chapter Labs

  • Kernel Overview
  • Kernel Configuration
  • sysctl
  • Kernel Modules
  • Module Utilities
  • Module Configuration
  • Udev and Device Management

Lab: Chapter Labs

  • Common Disk Types
  • Disk Geometry
  • Partitioning
  • Naming Disk Devices
  • Sizing Up Partitions
  • Partition table editors

Lab: Chapter Labs 

  • Some Notes About Filesystems
  • Virtual Filesystem (VFS)
  • Filesystem Concepts
  • Disk and Filesystem Usage
  • Extended Attributes
  • ext4
  • XFS
  • btrfs
  • Creating and formatting filesystems
  • Creating and repairing filesystems
  • Swap
  • Filesystem Quotas

Lab: Chapter Labs

  • RAID
  • 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

  • Programs and Processes
  • Process States
  • Execution Modes
  • Daemons
  • Creating Processes
  • Process Limits
  • Process Monitoring
  • Signals
  • Niceness
  • Libraries

Lab: Installing and Configuring Windows 7 

  • Software Packaging Concepts
  • RPM (Red Hat Package Manager)
  • DPKG (Debian Package)
  • Revision Control Systems

Lab: Chapter Labs

  • Package Installers
  • Yum
  • Zipper
  • APT

Lab: Chapter Labs 

  • User Accounts
  • Management
  • Passwords
  • Restricted Shells and Accounts
  • The root Account
  • Group Management
  • PAM (Pluggable Authentication Modules)
  • Authentication Process
  • Configuring PAM
  • LDAP Authentication
  • File Permissions and Ownership SSH

Lab: Chapter Labs

  • cpio
  • Tar
  • Compression: gzip, bzip and xz and Backups
  • dd
  • rsync
  • Dump and restore
  • Mt
  • Backup Programs

Lab: Chapter Labs

  • IP Addresses
  • Hostnames
  • Configuring Network Interfaces
  • Routing
  • Name Resolution
  • Network Diagnostics

Lab:  Chapter Labs

  • Firewalls
  • Interfaces
  • firewalld
  • Zones
  • Source Management
  • Service and Port Management

Lab: Chapter Labs 

  • Local System Security
  • Creating a Security Policy
  • Updates and Security
  • Physical Security
  • Filesystem Security
  • Linux Security Modules

Lab: Chapter Labs

  • 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 

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