Linux Administration Course Outline(Teqwizards.com)

1. Introduction to Linux

• History of Linux and open-source
• Linux distributions overview (Ubuntu, CentOS, Red Hat, etc.)
• Installing Linux (bare metal and virtual machines)
• Basic Linux file system layout
• CLI vs GUI

2. Command Line Essentials

• Basic commands: ls, cd, pwd, cp, mv, rm, touch
• File permissions and ownership: chmod, chown, umask
• Searching files: find, locate, grep
• Editing files with nano, vim, or vi
• Shell scripting basics (optional intro)

3. User and Group Management

• Creating and managing users and groups
• Understanding /etc/passwd, /etc/shadow, /etc/group
• User permissions and access control
• Password policies and user security

4. Package Management

• RPM-based systems: yum, dnf
• Debian-based systems: apt
• Installing, removing, and updating packages
• Managing repositories

5. File Systems and Disk Management

• Partitioning disks with fdisk or parted
• Filesystem types: ext4, xfs, btrfs
• Mounting and unmounting file systems
• Using df, du, lsblk, mount
• LVM basics

6. System Services and Process Management

• Managing processes with ps, top, kill, nice, renice
• Starting and stopping services: systemctl, service
• Understanding init and systemd
• Enabling/disabling services on boot

7. Networking and Firewalls

• Network interfaces and IP configuration
• Tools: ip, ifconfig, ping, netstat, ss, traceroute
• DNS, hostname, and /etc/hosts
• Firewall basics: firewalld, ufw, iptables

8. Log Management and Monitoring

• Understanding logs in /var/log
• Using journalctl
• Monitoring tools: top, htop, iotop, dstat
• Basic cron jobs and scheduled tasks

9. Security and Hardening

• Securing SSH access
• Setting up sudo access
• Basic SELinux or AppArmor concepts
• Firewall configuration and port management
• Intrusion prevention tools (fail2ban, etc.)

10. Backup and Restore

• Backup strategies and tools: rsync, tar, scp
• Snapshot tools (for LVM or btrfs)
• Recovery scenarios

11. Shell Scripting Basics (Optional Module)

• Writing simple bash scripts
• Using variables, conditionals, loops
• Automating common tasks

12. Final Project / Hands-on Lab

• Real-world Linux server setup scenario
• Deploying and managing a web server (Apache or Nginx)
• Creating user policies and configuring security
• Monitoring and troubleshooting logs