root@css:~$ ./guides --list --all
Cyber Security Guides
Structured, hands-on tutorials from absolute beginner to advanced defender. Every guide is free, emphasizes ethical and authorized practice, and includes real commands you can follow along with.
Linux Command Line Basics for Security
Learn the essential terminal commands every security learner needs: navigating the filesystem, managing files and permissions, and inspecting processes.
Network Scanning with Nmap
Discover hosts and open ports on networks you own using Nmap, the industry-standard scanner. Includes safe, authorized practice steps.
Password Security & Hashing Explained
Understand how passwords are stored, why hashing and salting matter, and how to build genuinely strong authentication for your own accounts.
Capturing & Reading Traffic with Wireshark
Use Wireshark to capture packets on your own network, apply display filters, and understand what plaintext versus encrypted traffic looks like.
Hardening Your Linux System
Apply layered defenses to a Linux machine: updates, a host firewall, SSH hardening, and automatic security patching.
Privacy Basics: Browsing with Tor & VPNs
Understand how Tor and VPNs protect your privacy, what each does and does not hide, and how to use them responsibly.