Fail2Ban

See Fail2Ban status

sudo fail2ban-client status sshd

See ban IPs

sudo zgrep 'Ban' /var/log/fail2ban.log*

Ban IP manually

1. Get jail name :

   sudo fail2ban-client status

2. Ban IP W.XX.YY.ZZ

   sudo fail2ban-client -vvv set JAIL banip WW.XX.YY.ZZ

3. Check IP is banned

   sudo fail2ban-client status sshd

Unban IP manually

sudo fail2ban-client -vvv set JAIL unbanip WW.XX.YY.ZZ