Fail2ban -- install // settings

• https://www.youtube.com/watch?v=kgdoVeyoO2E
• https://linuxize.com/post/install-configure-fail2ban-on-ubuntu-20-04/

$ sudo fail2ban-client set sshd banip 23.34.45.56
$ sudo service fail2ban restart

$ cat /var/log/fail2ban.log


Fail2Ban: how to unban IPs that are blocked?
https://bobcares.com/blog/fail2ban-unban-ip/

This text is part of a users guide and there is an index page to look at.