2023
https://www.stationx.net/ssh-commands-cheat-sheet/
    ! cool
2021
https://linoxide.com/ssh-commands-in-linux-with-usage-examples/
https://www.tecmint.com/ssh-security-best-practices/
2022
https://habr.com/ru/company/ruvds/blog/676596/
2019
https://proglib.io/p/ssh-tunnels/
2018
https://habr.com/post/425637/
http://www.thegeekstuff.com/2008/11/3-steps-to-perform-ssh-login-without-password-using-ssh-keygen-ssh-copy-id/