Reverse Shell Cheat Sheet:
https://github.com/swisskyrepo/PayloadsAllTheThings/blob/master/Methodology%20and%20Resources/Reverse%20Shell%20Cheatsheet.md
http://pentestmonkey.net/cheat-sheet/shells/reverse-shell-cheat-sheet
Shellcodes:http://shell-storm.org/shellcode/
https://www.youtube.com/ippsec
https://0xdf.gitlab.io/
https://www.hackingarticles.in/ctf-challenges-walkthrough/
https://www.reddit.com/r/hackthebox/
tmux https://www.youtube.com/watch?v=Lqehvpe_djs