[NEW] Red Hat Training and Certification - RHEL 9 (RH124)

It is designed for IT professionals to help them develop the foundational skills required for the RHCSA certification.

Disclaimer: This module is not authorized by Red Hat.

Red Hat System Administration I (RH124) is designed for IT professionals without previous Linux system administration experience. The course provides students with Linux administration competence by focusing on core administration tasks. This course also provides a foundation for students who plan to become full-time Linux system administrators by introducing key command-line concepts and enterprise-level tools.

Course Content:

Introduction

• What's New in RHEL 9

Step-by-step Installation Guide for RHEL 9

• Step-by-step Overview of RHEL 9 Installation

• How to Create a New Red Hat Login ID?

• Download RHEL 9.2 ISO Image File

• Create a RHEL9 template using Oracle VirtualBox

• Installation of Red Hat Enterprise Linux 9

• Install dependencies for VirtualBox Guest Additions

• Install VirtualBox Guest Additions on RHEL for Enhanced Functionality

• Troubleshooting

Access the Command Line

• Introduction to the Bash Shell

• Log in to a Local System

• Log in to a Remote System

• Log out from a Remote System

Access the Command Line with the Desktop

• Introduction to the GNOME Desktop Environment

• Parts of the GNOME Shell

• Understand Workspaces

• Start a Terminal

• Lock the Screen and Log Out

• Power off or Reboot the System

Execute Commands with the Bash Shell

• Basic Command Syntax

• Write Simple Commands

• Tab Completion

• Write Long Command on Multiple Lines

Manage Files from the Command Line

• Linux File System Hierarchy Concepts

• Practice Lab - Absolute & Relative Paths

• Command-line File Management

• Manage Links Between Files

• Practice Lab - Hard Link

• Practice Lab - Soft Link

• Match File Name with Shell Expansions

• Practice Lab - Tilde Expansion (~)

• Practice Lab - Variable Expansion

• Practice Lab - Command Substitution

Create, View, and Edit Text Files

• Standard Input, Output and Error

• Output Redirection Operators

• Practice Lab - STDIN, STDOUT & STDERR

• Practice Lab - Construct Pipelines

• Practice Lab - tee command

• Edit Files with Vim

• Practice Lab - Vim Editor

• Practice Lab - Visual Mode

Change the Shell Environment

• Shell Variables

• Practice Lab - Environment Variables

• Practice Lab - Assign Values to Variables

• Practice Lab - Configure Bash with Shell Variables

• Practice Lab - Configure Bash with Shell Variables

Get Help in Linux

• Read Manual Pages

• Practice Lab - Get Help

Manage Local Users and Groups

• Overview of User Account

• Group Account

• Primary and Secondary Group

• Practice Lab Session - Manage Local User Accounts

• Practice Lab Session - Manage Group Accounts

• Shadow file

• Superuser - root user

• Switch user - su

• Run command with sudo

• Configure sudo

Control Access to Files - Permissions in Linux

• Overview of Linux File-system Permissions

• Symbolic & Numerical Notations in Linux

• Understand Linux File-system Permissions with diagram

• Practice Lab Session: Linux File-system Permissions

• Practice Lab Session: Change Ownership

• Change Permissions with Symbolic Method

• Change Permissions with Octal Method

• Special Permission - SetUID

• Command to apply SetUID

• Special Permissions - SetGID

• Special Permissions - Sticky Bit

Monitor and Manage Linux Processes

• Definition of a Process

• Describe Process State

• Practice Lab - top command

• Practice Lab - Listing Processes

• Control Jobs - Foreground & Background Processes

• Practice Lab - Foreground & Background Processes

• Process Control with Signals

• Practice Lab - SIGTSTP, SIGSTOP, SIGCONT, SIGTERM, SIGKILL

• Practice Lab - SIGINT, SIGHUB

Control Services and Daemons

• Introduction to Systemd

• Practice Lab - Systemd Service

• Practice Lab - Restart, Reload, Mask Service

• Practice Lab - Systemd Targets

• Practice Lab - List Service Unit

Configure and Secure SSH

• About Openssh

• SSH Hot Keys

• SSH Key Based Authentication

• Practice Lab

• Customize OpenSSH

• Practice Lab - Prohibit Root User

• Practice Lab - Prohibit Password-based Authentication

• Practice Lab - Private key-based Logins

Analyzing & Storing Logs

• System Logging

• Log Events to the System

• Practice Lab - Rsyslog Service

• Practice Lab - Collecting Information Journalctl

• Practice Lab - Journalctl Command

• Log file rotation

Archiving and Transfer Files

• Overview of tar archive utility

• Practice Lab - Create an Archive

• Practice Lab - Extract and List Archive Contents

• Practice Lab - Gzip Compression

• Practice Lab - bzip2 compression

• Practice Lab - xz compression

• Practice Lab - List Content of Compressed Archive

Managing Remote Server

• Monitoring system using web console

• Navigating web console - 1

• Navigating web console - 2

• Last Lecture