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The commands presented above can be executed using:
$ fail2ban-client <COMMAND>
or by typing them in the interactive console available with:
$ fail2ban-client -i
Manually Unban a <IP> address in <JAIL>:
fail2ban-client set <JAIL> unbanip <IP>
For sshd jail:
fail2ban-client set sshd unbanip 10.12.112.1