Step 1: Find IP Address to Unblock
Log in to your server via SSH and type in the following command:
iptables -L -n
Look for the IP address you want to unblock / unban.
Step 2: Get Jail Name of fail2ban Blocked IP Address
Now we must find the jail name this IP address is in. To do so, type the following to find the jail list settings:
Step 3: Unban IP Address from fail2ban
For this example, we will remove an IP address jailed within ssh. To do so, type in the following:
fail2ban-client set <jail-name> unbanip 184.108.40.206
The IP address should now be unbanned from fail2ban.