as root:


To check fail2ban status:

''fail2ban-client status''

To check fail2ban status of specific "jail" (sshd here):

''fail2ban-client status sshd''

To unban a specific IP (alternatively you can just wait 24 hours and they will automatically unban)

''fail2ban-client set sshd unbanip 0.0.0.0''

(insert IP address to unban instead of 0.0.0.0)