Linux OS

Module 1: History and Genesis of Linux

1. Understanding the root and design paradigm of Linux
2. Open-source philosophy and the GNU project and Linux
3. Reading: The Cathedral and the Bazaar

Module 2: Linux Distributions (Distros)

1. Root Distributions
2. Descendant Distributions
3. Installing Distros locally and remotely

Module 3: Why Linux is Relevant to DevOps, SREs, and Data Analysis

1. Dominance in Servers and Supercomputing space
2. Cloud Computing and Virtualization
3. Major cloud platforms (AWS, Google Cloud, Azure) use Linux extensively
4. DevOps and Containerization

Module 4: Installing and Setting Up a Linux System

1. Installing Linux on a virtual machine (using VirtualBox/VMware)
2. Dual-booting Linux with other operating systems
3. Overview of the Linux desktop environment

Exercise:

1. Install Linux using WSL / virtual machine
2. Install Linux on a remote server for access to the internet
3. Is WSL really Linux? (Discussion)

Module 5: Exploring the Linux System

1. Terminals and Shells (bash, sh, zsh, fish etc.)
2. Piping and Redirection (The heart of the Linux concept)
3. Finding help (man, apropos, info etc.)
4. Linux file structure and the kernel
5. Desktop Environments and Window Managers
6. Extra Resource: AT&T UNIX archives (YouTube)

Exercise:

1. Explore man, man -k, apropos
2. Watch AT&T archives on piping and UNIX design concept
3. Demo piping and redirection

Module 6: Linux Commands

1. Linux command structure
2. History and recursive searches
3. Basic and everyday commands
4. Administration commands
5. File and Directory Management
6. Users and group management

Exercise:

1. Explore user creations and permissions
2. Watch online video on popular Linux commands
3. Install zsh and oh-my-zsh on your account

Module 7: Working with Files

1. File editors (vim, pico, nano, Visual Studio Code, etc.)
2. Configuration and run command (rc) files

Exercise:

1. Explore vim through vimtutor
2. Connecting Visual Studio Code to the remote server

Module 8: System Administration

1. Working with services (systemctl or service)
2. System monitoring and performance (top, free, etc.)
3. Disk and memory management
4. Risk assessment frameworks and vulnerability prioritization techniques
5. Working with processes
6. Package management
7. Introduction to Shell scripting

Exercise:

1. Explore simple bash scripts

Module 9: Networking Essentials

1. Network Topology
2. IP Addresses, ports and sockets, MAC addresses
3. Types of computer networks
4. Private and Public IP addresses
5. Network devices (bridges, switches, and hubs)
6. The network OSI model layers
7. Network Services (DHCP, DNS, SSH)
8. Routing & Switching Basics
9. Ports & Protocols (TCP/IP, UDP, HTTP, DNS)
10. Firewall and Network Security
11. Backup and Recovery

Exercises:

1. Port usage with port 80 as an example
2. Explore IP and MAC addresses
3. Explore DNS name resolution

Final Project – Website/Web App Hosting on a VPS/EC2 Instance

1. Create a website on a Linux instance on the internet with a domain and DNS name resolution included
2. Enable SSH Access