Working notes on cybersecurity, kept while studying and published here so they stay useful outside my vault. Three tracks run through them: fundamentals and network security, ethical hacking and penetration testing, and digital forensics and incident response.
88 notes, written in Obsidian, published with Quartz. They are study notes rather than a textbook — written to be re-read, so most are short and link heavily to one another.
New here?
Start with the 00-Cyber Security MOC. It is the top-level map and links out to everything else in a sensible reading order.
The maps
Each map of content is a hub for one track, ordering its notes so you are not reading them alphabetically.
- 00-Cyber Security MOC — the top-level map
- CSF & NS MOC — fundamentals and network security: CIA triad, segmentation, DMZ, protocols
- EHPT MOC — ethical hacking and penetration testing: recon, exploitation, post-exploitation
- DFIR MOC — digital forensics and incident response: acquisition, analysis, response
- Study Dashboard — what is finished and what is still in progress
The sections
01-Concepts — 29 notes, one idea each. The theory: what a thing is and why it matters. Start at What is Cybersecurity, then CIA Triad and Networking Fundamentals.
02-Quick-References — 12 cheatsheets built for looking something up mid-task, like Nmap Commands Cheatsheet, Common Ports & Protocols Reference and OWASP Top 10 Quick Reference.
03-Projects — 25 labs and practicals, each with its setup and what actually happened. The capstones pull a whole track together: Capstone - Full VAPT Report and Capstone - Full Forensic Investigation.
04-Tools — 17 notes on individual tools: flags, worked examples and the gotchas worth remembering.
Lab material
Techniques here come from controlled lab environments, against machines I own or am authorised to test. Addresses in examples are RFC 1918 or textbook ranges. Use any of it only where you have permission.
Getting around
Search sits at the top of the sidebar and the explorer below it mirrors the vault structure. Links behave as they do in Obsidian — hover one to preview the note without leaving the page — and the graph on the right shows what connects to what.