Linux System Administration Certification Training Course (55187-D)

55187: Linux System Administration Certification Training Course Overview

Linux System Administration or 55187A course offers learners core knowledge and skills required to work as a Linux system administrator in a professional setup. This Linux System Administration course covers how to configure, manage and upgrade systems running on any of the three Linux distribution families: SUSE, Red Hat, or Ubuntu/Debian. The course will teach participants to employ various tools and techniques for building and managing an enterprise Linux infrastructure.

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Linux System Administration Certification Training Course (55187-D) (Duration : 32 Hours) Download Course Contents

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Course Modules

Module 1: System Startup and ShutdownThis 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
  • Upstart
  • systemd
  • Shutting down/Rebooting the System
  • 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 LayoutThis 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
  • /bin
  • /dev
  • /etc
  • /home
  • /lib and /lib64
  • /media
  • /mnt
  • /opt
  • /proc
  • /sys
  • /root
  • /sbin
  • /tmp
  • /usr
  • /var
  • /run
  • Change size of the default directories
  • Touring the /proc Filesystem
Module 3: Kernel Services and ConfigurationThis 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
  • sysctl
  • Kernel Modules
  • Module Utilities
  • Module Configuration
  • udev and Device Management
  • Manipulating system tunables with sysctl.
  • Changing the maximum process ID.
  • Working with Kernel modules.
  • Working with udev
Module 4: Partitioning and Formatting DisksThis module explains how to work with disks in Linux by naming, partitioning and sizing them.
  • Common Disk Types
  • Disk Geometry
  • Partitioning
  • Naming Disk Devices
  • Sizing up partitions
  • Partition table editors
  • 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 FilesystemsThis 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)
  • Some Notes About Filesystems
  • Virtual Filesystem (VFS)
  • Filesystem Concepts
  • Disk and Filesystem Usage
  • Extended Attributes
  • ext4
  • XFS
  • btrfs
  • Creating and formatting filesystems
  • Checking and Repairing Filesystems
  • Mounting filesystems
  • Swap
  • Filesystem Quotas
  • 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 LVMThis module explains how to work with RAID and Logical Volume Management (LVM).
  • RAID
  • RAID Levels
  • Software RAID Configuration
  • Logical Volume Management (LVM)
  • Volumes and Volume Groups
  • Working with Logical Volumes
  • Resizing Logical Volumes
  • LVM Snapshots
  • Creating a RAID device
  • Creating Logical Volumes
Module 7: ProcessesThis 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
  • Daemons
  • Creating Processes
  • Process Limits
  • Process Monitoring
  • Signals
  • niceness
  • Libraries
  • Controlling processes with ulimit
  • Using ps and top
  • Monitoring process states
  • Examining signal priorities and execution
Module 8: Package Management SystemsThis 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
  • Using RPM
  • Rebuilding the RPM database
  • Using DKPG
  • Version control with git
Module 9: Package InstallersThis 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
  • yum
  • zypper
  • APT
  • 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 ManagementThis 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
  • 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
  • Working with user accounts
  • Working with groups
  • Configuring PAM
  • Using chmod
Module 11: Backup and Recovery MethodsThis 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
  • Cpio
  • Tar
  • Compression : Gzip ,Bzip and xz and Backups
  • dd
  • rsync
  • dump and restore
  • mt
  • Backup programs
  • Using tar for backup
  • Using cpio for backup
  • Using rsync for backup
Module 12: NetworkingThis module explains how to conduct basic networking in Linux. It covers IP addresses, Hostnames, Network Interfaces, Routing and Name Resolution.
  • IP Addresses
  • Hostnames
  • Configuring Network Interfaces
  • Routing
  • Name Resolution
  • Network Diagnostics
  • Static configuration of a network interface
  • Adding a static hostname
  • Adding a network interface alias
Module 13: FirewallsThis 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.
  • Firewalls
  • Interfaces
  • firewalld
  • Zones
  • Source Management
  • Service and Port Management
  • Installing firewalld
  • Examining firewall-cmd
  • Adding services to a zone
  • Using the firewall GUI
Module 14: Local System SecurityThis 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 type
  • Local System Security
  • Creating a Security Policy
  • Updates and Security
  • Physical Security
  • Filesystem Security
  • Linux Security Modules
  • Using SELinux
  • Security and mount options
  • Using umask
  • Usint setuid and scripts
Module 15: Basic Troubleshoot and System RescueThis 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 Failurees
  • Filesystem corruption and recovery
  • Virtual consoles
  • Rescue Media and Troubleshooting
  • System rescue and recovery
  • Preparing to use Rscue / Recover media
  • Recovering from a corrupted GRUB configuration
  • Recovering from a password failure
  • Recovering from partition table corruption
  • Recovering using the install image
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Course Prerequisites

Before attending this course, students must have:

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

Upon Completion of this Course, you will accomplish following:-

  • Managing startup and shut down processes in Linux.
  • Organization of Linux Filesystem and its key directories.
  • Configuration of Linux kernel and working with kernel modules.
  • Formatting and partitioning disks.
  • Creating formatting, mounting, swapping and repairing file systems and virtual file systems in Linux.
  • Logical volume Management and working with RAID.
  • Creating, monitoring, prioritizing and limiting processes in Linux.
  • Understand the role and function of package management systems.
  • User and Group Account Management in Linux.
  • Backup and Recovery.
  • Ensuring System Security using Firewall and Networking.

Give an edge to your career with Red Hat certification training courses. Students can join the classes for 55187: Linux System Administration Training Certification at Koenig Campus located at New Delhi, Bengaluru, Shimla, Goa, Dehradun, Dubai & Instructor-Led Online.