Active Directory Password Spraying Active Directory Without Tripping Lockouts
A practical, lockout-aware guide to password spraying Active Directory with kerbrute, plus detection and defense.
blue-team
Active Directory 
Linux Privesc Linux Persistence Techniques: Maintaining Access After Initial Compromise
A practical tour of Linux persistence: authorized_keys, cron, systemd, rc.local, and ld.so.preload, plus detection.
Security Reverse Shell Cheat Sheet: From One-Liners to a Stable TTY
A practical reverse shell cheat sheet covering bash, nc, python and PowerShell payloads plus TTY upgrade and detection.