First, you need to connect to the terminal and find the right jail.
- Open terminal
iptables -L -nto find the rule name, it could be quite messy so I recommend skip this step 🙂
fail2ban-client statusto show names of all fail2ban jails
- For F2B before v0.8.8
ffail2ban-client get YOURJAILNAMEHERE actionunban IPADDRESSHERE
- For F2B v0.8.8 and later
fail2ban-client set YOURJAILNAMEHERE unbanip IPADDRESSHERE