1

Introduction to Operating Systems

2

Parts of Operating System

3

Kernel, Shell & File

4

History of UNIX and LINUX

5

Linux and GNU Project

6

Basic Concepts of Linux

7

Identification of various Linux distributors

8

Discussion About RHCSA Exam

1

Planning a Linux Installation

2

Partitioning Requirements

3

Linux Installation Method

4

Required Partitions for RHEL 8 Installation

5

Dual Booting with Windows Operating System

6

Download and Install VMware Workstation

1

Introduction to VMware Workstation

2

Introduction Virtualization Technology

3

Create VM on VMware Workstation for RHEL 8

4

Installation of RHEL on VMware Workstation

5

Install RHEL instance of AWS cloud

6

Configure BIOS/UEFI options for OS booting

7

Details discussion about OS booting options

8

Details discussion about Installation Summary

9

Linux Installation Method (MBR and GPT)

10

Configure Post installation on RHEL 8

1

The GNOME Desktop Environment

2

Working with terminal and command console

3

Introduction to Linux shells and terminal

4

Linux Virtual Console/Terminal

5

Logging remote system through SSH

6

Logging web interface using cockpit

7

Linux Command Syntax, Options, Argument

8

Examples of Simple Commands

9

Powering Off, Reboot and Logout System

10

Navigating Linux Directory Paths

11

Command-line File & Directory Management

12

Files & Directory handling commands

1

Standard Input, Output and Error Concept

2

Redirecting Output to a File

3

Constructing and Using Pipelines

4

Working with Regular Expressions ‘grep’

5

Familiar with Linux ‘find’, ‘ and ‘locate’

6

Documentation for Commands

1

Why need text editor

2

Different types of text editors

3

Introduction to ‘vi/vim’ and ‘gedit’

4

Linux Text Editor Utilities (vim, gedit, nano)

5

Working with Different ‘vi/vim’ Modes

6

Editing, Replacing, Searching with ‘vi/vim’

7

Working with ‘vim’ advanced features

1

Users and Groups Introduction

2

Linux User Types and Database

3

Primary Groups and Supplementary Groups

4

Gaining Super user Access

5

Running commands as root with SUDO

6

Managing Local User Accounts

7

Managing Local Group Accounts

8

Managing User Passwords

9

Managing User’s Password Aging

1

Explore Linux File & Directory Types

2

Linux standard file permissions

3

Hard Link and Soft Link concepts

4

Viewing File/Directory Permission and Ownership

5

Linux User, Group and Other permission Concept

6

Set permission using read, write and execute

7

Linux Special Permissions SUID, SGID, Sticky bit

8

Securing Files with ACLs

9

Creating, modifying and deleting ACL’s

1

Why Need Backup?

2

Different types of Backup method

3

Archive Files and Directories using ‘tar’

4

Discuss about different ‘tar’ options

5

Extract Compressed ‘tar’ Archive

6

Discuss about gz, bz2 and xz Compression

7

Compress and De-compress using ‘gz, bz2, xz’

1

Step by step Linux booting procedures

2

Explain and Controlling the Boot Process

3

Working with GRUB2 Boot loader

4

Working with Linux Kernel (CentOS)

5

Update Linux Kernel (CentOS)

6

Introducing RHEL Systemd

7

Controlling RHEL daemon & Services

8

Enabling/Disabling System Daemons at boot

9

Linux process management introduction

10

Parent processes and child processes

11

System process and user processes

12

Details explain of “TOP” command

13

Graphical process monitoring system

14

Background and Foreground Processes

15

Controlling jobs using ‘bg’, ‘fg’, ‘ctrl+z’, ‘ctrl+c’

16

Monitoring & Killing Process Activities

17

Process priority and ‘nice’ concepts

18

Managing priority of Linux Process

1

Identifying File Systems and Devices

2

Understanding Linux file systems

3

Managing MBR Partitions with ‘fdisk’

4

Managing GPT Partitions with ‘gdisk’

5

Creating File System (xfs, ext4, swap)

6

Mount Points and ‘/etc/fstab’ – Details

7

Mounting and Un-mounting File Systems

8

Working with USB, DVD, ISO, VFAT

9

Why need swap partition

10

Create additional ‘swap’ space

1

Limitation of Standard Partitions

2

Importance of Logical Volume Management (LVM)

3

Preparing storage partitions for LVM

4

Creating Physical volumes (PV)

5

Creating Volume Group (VG)

6

Creating Logical Volume (LV)

7

Extend Volume Group (VG)

8

Extend Logical Volumes

9

Resizing Logical Volumes

10

Remove Logical Volumes

1

Understand Network Device Recognition

2

Working with NetworkManager Services

3

Introducing Network Manager tools (nmcli & nmtui)

4

Configuring Host Name and Name Resolution

5

Working with gateway and route table

6

Static and dynamic Configure Static and dynamic IP

7

Configuring IPv4 Networking using ‘nmtui’

8

Configuring IPv6 Networking ‘nmcli’

9

Advanced configure using ‘vim’ text editor

1

Software Packages and RPM

2

The Linux Package Management system

3

Examining RPM Package Files

4

RPM Install, Queries and verifying

5

Dependency problems and Resolution

6

Concept of YUM Repositories and Clients

7

Register system with Red Hat Portal

8

Packages Install and Remove with YUM & DNF

9

Enable Third-party Software Repositories (EPEL)

1

Virtualization Introduction

2

RHEL Virtualization Introduction

3

Working with Linux Qemu-KVM

4

Required resources for RHEL Virtualization

5

Create VM and install new OS

6

Virtualization vs Containerization

7

Red Hat Containerization using Podman

8

Inspect container images

9

Perform basic container management

10

Run a service inside a container

1

Introduction to Linux Scheduling

2

Scheduling Recurring Jobs with ‘cron’

3

Scheduling System cron Jobs

4

Explain cron job file format

5

Running commands at particular times

6

Identify various CRON entries and schedules

7

Scheduling Future Linux Tasks

1

What is the Secure Shell (SSH)?

2

How SSH (Secure Shell) works?

3

SSH Host Keyes (Public and Private)

4

Configuring SSH Key-based Authentication

5

Password less SSH Login

6

Customizing SSH Service Configuration

7

Restricting SSH Logins (root)

8

Putty and Open SSH Clients

9

Secure Copy Through ‘scp’

1

NFS Server Configuration and NFS Clients

2

Setup an NFS server and export directories

3

Review /etc/exports parameters and options

4

Evaluate access to NFS exports

5

Mount NFS server in NFS clients

6

NFS Server Auto mount

1

Introduction to Shell Scripting

2

Creating and Executing First Shell Script

3

Working with Shell Variables

4

Passing Arguments to the Bash Script

5

Executing Shell Commands with Bash

6

Reading User Input in Bash Shell

7

Working with Bash Statement

8

Bash Conditional and Control Structures

9

Working with Login and Non-Login shells

10

System information through bash scripts

1

Introduction to Firewall Technologies

2

Netfilter and Firewalld concepts

3

Working with ‘firewalld’ zones concepts

4

Managing & Configure Firewall Settings

5

IP, ICMP, Port, Service Filtering using ‘firewalld’

6

Introducing SELinux Security

7

Explanation of SELinux Modes

8

Working with SELinux Security Context

9

Managing SELinux port Labeling

10

Working with SELinux Boolean

1

Tuning Operating System

2

Working with Syslog Files

3

Monitor Log Files with ‘tail’

4

Preserving the ‘systemd’ Journal

5

Port monitoring with netstat

6

MTR, Traceroute, TCP dumps, nmap concept

7

Recovering Root Password

8

Recovering GRUB BootLoader

9

Common System Hardening