This is a personal collection of quick notes on networking, cybersecurity, and CTFs. It’s a place to keep things organized and accessible for future reference. I always try to improve these notes with better formatting and clearer explanations.

This site is mainly for my own use, but if you find it, feel free to use it.

Categories

• Cryptography – Protocols, routing, and fundamentals.
• Hashing – Threats, defenses, and best practices.
• John the Ripper – Password cracking and security.
• Metasploit – Exploitation framework and tools.
• nmap – Network scanning and security auditing.
• tcpdump – Packet analysis and network monitoring.
• Windows – Windows OS security and tools.
• Wireshark – Network protocol analyzer.

I also create content on YouTube, where I cover similar topics. You can find me at @dinjik.