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Linux System Administration Online Course

person icon Shikhar Verma

4.3

Linux System Administration Online Course

Use the in-demand Linux skills you learn in this course to boost your career with practical approach of learning

updated on icon Updated on Jun, 2025

language icon Language - English

person icon Shikhar Verma

English [CC]

category icon IT and Software ,Operating Systems and Servers,Linux

Lectures -106

Duration -9 hours

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4.3

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Course Description

Introduction

Securing & Hardening a Linux System

  • Linux Physical Security.

  • How to break root password.

  • Securing the grub menu.

  • Reset the root password from rescue mode.

  • BIOS Protection.

  • General Security.

  • Keep your system updated.

  • Turn off IPv6.

  • Disable USB Stick to detect.

  • Restrict Users to Use Old Passwords.

  • Check the Password Expiration of a User.

  • Password Expiration - Lab Session.

  • Verify accounts for an empty password.

  • Verify accounts with "Zero" UID.

  • Review logs regularly.

  • Keep /boot as read-only.

Managing Server Firewalls

  • Firewall concepts

  • About nftables, features and advantages of Firewalld

  • Firewalld components, pre-defined zones

  • How packet flows through the firewall

  • Check firewall services - Lab Session

  • Adding and Removing Services & Port from Firewall Server - Lab Session

  • Add Services Permanently in Firewalld - Lab Session

  • Add HTTP Service in Firewalld - Lab Session

  • Port forwarding - Lab Session

  • Conceptual discussion about Masquerading, Packet Flow in Firewalld

  • Masquerading with Port Forwarding - Lab Session

  • About Rich Rules in Firewalld

  • Specifically, allow a Server using Rich Rules - Lab Session

  • Allow Telnet Port, SSH with log-prefix using Rich Rule - Lab Session

  • Accept, Reject, Drop - Lab Session

Advanced Storage Features:

  • About Stratis

  • Lab - Installing & Configuring Stratis

  • Lab - Managing Stratis File Systems

  • Lab - Persistently Mounting Stratis File Systems

  • Lab - Stratis filesystem snapshot

  • Guided Exercise - Create a thin-provisioned file system

  • Guided Exercise - Verify file system grows dynamically

  • Guided Exercise - Create & access data from Snapshot

  • VDO - Virtual Data Optimizer

  • Lab - Installation VDO

  • Lab - Create & format a VDO Volume

  • Lab - Testing Deduplication:

  • Recap - Lab

  • Lab - Extend & Remove VDO Volume

Linux Containers:

  • Introducing Container Technology

  • Planning for containers

  • Lab - Configure a basic container

  • Lab - mapping container host ports to the container

  • Lab - stop, restart & remove container

Setting up an Apache Web Server:

  • Introduction Apache Web Server

  • Basic Setup of Apache Web Server

  • Apache main configuration file - 1

  • Apache main configuration file - 2

  • Launching a simple web page

  • Order (Allow, Deny)

  • Indexes

  • Practice Lab Session on Indexes

  • .htaccess - Security Restrictions on directories

  • Practice Lab Session

  • Secure a Web Server

  • Encrypted Communication using SSL (443 port)

  • Practice Lab Session

Setup a DNS Server:

  • Overview about DNS

  • Understanding root & top-level domain hierarchy

  • How DNS works?

  • Configure a DNS server - lab 1

  • Zone configuration - lab 2

  • Zone configuration - lab 3

  • Troubleshooting of DNS issues

  • DNS Server Interview Questions and Answers

Automating Linux Administrative tasks:

  • About Ansible

  • Ansible Setup - Lab1

  • Ansible Setup - Lab2

  • Ansible Setup - Lab3

  • Ansible Setup - Lab4

  • Ansible Components

  • Control & Managed Node

  • Ansible Inventories

  • Customizing Ansible

  • AD HOC Commands

  • Ansible Modules

  • Lab - Idempotent behaviour

  • Lab - Command & Shell Module

  • Lab - Configuration file directives

Managing SELinux Security:

  • SELinux Security Concepts

  • SELinux Context

  • SELinux Modes

  • Lab on SELinux Modes

  • A practical approach to understanding SELinux

  • Lab - Change context temporary

  • Lab - Change context permanently

  • Lab - SELinux inheritance and its pitfalls

  • SELinux Booleans

  • Lab - SELinux Booleans

  • Audit logs & Troubleshooting SELinux

  • Interview Questions and Answers SELinux

Samba Server:

  • Overview of Samba Server

  • How Samba Works

  • Lab - Installation & Configuration of Samba Server

  • Lab - Configure a Private Samba Share

  • Lab - mount samba share on Linux Client

  • Lab - mount samba share on Windows Client

  • Lab - Configure a Public Samba Share

  • Lab - Drive mapping on Windows client

  • Lab - Secure Samba share resources

  • Last Lecture

Goals

  • Securing & Hardening a Linux System.
  • Managing Server Firewalls.
  • Advanced Storage Features.
  • Linux Containers.
  • Setting up an Apache Web Server.
  • Automating Linux Administrative tasks.
  • Automate Linux using Ansible.
  • Managing SELinux Security.
  • Samba Server.
  • VDO - Virtual Data Optimizer.

Prerequisites

  • PC or Laptop with Internet Connection.
  • Basic Knowledge of Linux Administration would be required as it is a intermediate-level course module.
Linux System Administration Online Course

Curriculum

Check out the detailed breakdown of what’s inside the course

Securing & Hardening a Linux System

17 Lectures
  • play icon Introduction 04:02 04:02
  • play icon Linux Physical Security 04:21 04:21
  • play icon How to break root password 06:21 06:21
  • play icon Securing the grub menu 04:15 04:15
  • play icon Reset root password from rescue mode 03:20 03:20
  • play icon BIOS Protection 02:39 02:39
  • play icon General Security 03:19 03:19
  • play icon Keep your system updated 03:05 03:05
  • play icon Turn off IPv6 01:12 01:12
  • play icon Disable USB Stick to detect 01:45 01:45
  • play icon Restrict Users to Use Old Passwords 04:17 04:17
  • play icon Check Password Expiration of a User 03:29 03:29
  • play icon Password Expiration - Lab Session 06:07 06:07
  • play icon Verify accounts for empty password 02:54 02:54
  • play icon Verify accounts with "Zero" UID 02:17 02:17
  • play icon Review logs regularly 03:03 03:03
  • play icon Keep /boot as read only 03:54 03:54

Managing Server Firewalls

15 Lectures
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Advanced Storage Features

14 Lectures
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Managing SELinux Security

11 Lectures
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Samba Server

9 Lectures
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Setting up a Apache Web Server

13 Lectures
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Linux Containers

5 Lectures
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Automating Linux Administrative tasks

14 Lectures
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Setup a DNS Server

8 Lectures
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Instructor Details

Shikhar Verma

Shikhar Verma

Shikhar Verma is an accomplished entrepreneur and corporate trainer, leading Techstart, an IT company specializing in a wide range of technology-driven projects. His expertise encompasses designing and developing certified courses, content creation, and managing both online and offline IT projects for renowned organizations.

With over 15 years of experience in the IT industry before establishing his own business, Shikhar has cultivated a deep understanding of technology and corporate training. His passion lies in leveraging his technical skills and experience to drive organizational growth while advancing his professional journey.

As an instructor on TutorialsPoint, Shikhar is dedicated to making complex technical concepts accessible and easy to understand. Since beginning his teaching career in 2016, he has successfully educated over 100,000 students worldwide and continues to inspire learners across diverse backgrounds. He takes immense pride in his ability to connect with students from nearly every country.

Shikhar holds a B.Tech in Electrical and Electronics Engineering, and his technical courses have empowered more than 1 lakh students across 165 countries.

His core expertise includes GenAI, Python, DevOps, Docker, Git, Kubernetes, Linux, Ansible, Shell Scripting, AWS Cloud (Amazon Web Services), Linux Clustering, and Perl.

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