🛡️ My Cyber Notebook

Notes, references, and CTF writeups — stitched together with curiosity, reproducibility, and a mildly unhealthy love for automation.

Browse Notes • See Writeups • Reference Hub

What this is

This book is a growing collection of concise notes, repeatable configs, and step-by-step writeups from my work in:

• Linux hardening & privesc, network forensics, web exploitation, and reversing.
• My homelab (Proxmox + LXC/Docker, segmented networks, Tailscale, TLS).
• Ansible roles/playbooks for CIS/ANSSI-style hardening and lab automation.

Where helpful, pages are tagged (e.g., linux, privesc, web, pwn, ansible). If you have mdbook-tags enabled, you’ll get automatic tag indexes under /tags/….

“Document what you break, so you can break it better next time.”

Structure

• Notes — short, focused pages: theory, commands, gotchas.
  Start here: notes/README.md
• Writeups — full walkthroughs for TryHackMe, Root-Me, FCSC, etc.
  Start here: writeups/README.md
• References — tools I reuse, shell snippets, bibliography.
  Start here: references/README.md

If search is enabled (mdbook-search), use the 🔍 bar to jump to commands or error strings.

Homelab snapshot

• Segmented services (Pi-hole, Vaultwarden, Nextcloud AIO, Jellyfin, SIEMini).
• LXC + Docker Compose + Ansible for repeatability.
• Logs routed to a mini-SIEM (Snort3, Syslog-NG, Elastic/Kibana).