[opsdisk]

This is the biggest infosec-focused collection I've seen https://github.com/0x90n/InfoSec-Black-Friday.

My shameful promotion to level up your SSH tunneling and port redirection game:

* $10 for the interactive lab - The Cyber Plumber's Lab Guide and Access https://opsdisk.gumroad.com/l/cphlab/blackfriday2021

* The accompanying book is free: https://github.com/opsdisk/the_cyber_plumbers_handbook