Advanced Linux Administration & Security

Overview

This project builds on Fundamentals of Linux, introducing advanced administration, automation, and security techniques. You’ll explore performance monitoring, scripting, networking, security auditing, and log analysis, equipping you for real-world Linux system management.

What You Will Learn

System Performance Monitoring: Using top, htop, iotop, vmstat, free
Process & Service Management: systemctl, kill, nohup, tmux
Advanced Bash Scripting: Automating tasks with loops, cron jobs
Networking & Firewall Security: iptables, nftables, ufw, netstat, ss
Security Hardening: Auditing with Lynis, configuring SELinux/AppArmor
Log Analysis & Troubleshooting: Using journalctl, syslog, grep

Self-Check: Are You Ready?

Before diving into the lab, answer these:

  1. How do you restart a system service?
  2. What command shows real-time CPU and memory usage?
  3. How can you schedule a script to run daily?
  4. What firewall command would block incoming SSH?
  5. How do you check failed login attempts?

🎯 If you are unsure, revisit Fundamentals of Linux before continuing.

Next Steps

Ready to get started? Access the full lab below:

➡️ Go to the Full Lab