Linux Study Plan – From Basics to Power User!

Want to master Linux for cybersecurity, DevOps, or cloud? Here’s a FREE 60-day roadmap to take you from beginner to expert!

You Should Know:

Week 1–2: Linux Fundamentals

• Installation (Ubuntu/Kali):

  Verify ISO checksum 
  sha256sum ubuntu-22.04.iso 
  Create bootable USB (Linux) 
  sudo dd if=ubuntu-22.04.iso of=/dev/sdX bs=4M status=progress 
  

• Terminal Basics:

  ls -la  List files with permissions 
  pwd  Print working directory 
  man ls  View manual for 'ls' 
  

• User & Permission Management:

  sudo adduser newuser  Add new user 
  chmod 755 script.sh  Set file permissions 
  chown user:group file  Change ownership 
  

Week 3–4: Intermediate Linux

• Process Management:

  ps aux | grep ssh  Check running processes 
  kill -9 PID  Force kill process 
  top  Monitor system processes 
  

• Cron Jobs:

  crontab -e  Edit cron jobs 
  Run script daily at 3 AM 
  0 3    /path/to/script.sh 
  

• Networking Basics:

  ifconfig  Network interfaces (deprecated, use 'ip a') 
  ping google.com  Check connectivity 
  netstat -tuln  List open ports 
  

Week 5–6: Advanced Linux & Security

• SSH & Secure File Transfer:

  ssh user@remote_server 
  scp file.txt user@remote:/path/ 
  rsync -avz /local/folder/ user@remote:/backup/ 
  

• System Logs & Services:

  journalctl -xe  View system logs 
  systemctl status ssh  Check service status 
  sudo ufw enable  Enable firewall 
  

Week 7–8: Linux for Cybersecurity

• Nmap Scanning:

  nmap -sV 192.168.1.1  Service detection 
  nmap -A -T4 target.com  Aggressive scan 
  

• Packet Analysis (tcpdump):

  sudo tcpdump -i eth0 port 80 -w capture.pcap 
  

• Hardening & Auditing:

  sudo apt install lynis  Security auditing 
  sudo lynis audit system 
  

Practice Platforms:

• OverTheWire
• TryHackMe Linux Rooms

What Undercode Say:

Linux is the backbone of cybersecurity, cloud computing, and DevOps. Mastering these commands will give you full control over systems, automate tasks, and secure networks.

• Bonus Commands:

  grep "error" /var/log/syslog  Search logs 
  find / -perm -4000 -type f  Find SUID files 
  history | grep "ssh"  Review past SSH commands 
  

Expected Output:

A fully hardened Linux system with automated scripts, secure remote access, and active monitoring.

Prediction:

Linux skills will remain critical in cybersecurity, with demand increasing for cloud and automation experts.

IT/Security Reporter URL:

Reported By: Dharamveer Prasad – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

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