Unblock an IP address in Fail2Ban

There are a few steps involved.

1. Find the jail name involved
2. Confirm the IP address is indeed blocked
3. Unblock the IP using the jail name and IP address

nft list ruleset

This will list the current firewall rules, and should display the IP address in a named set

fail2ban-client status

This will include output that lists the names of available jails. You need to identify the correct jail in order to unblock the IP

fail2ban-client set <jail-name> unbanip <ip-address>

If found, this will remove the block on the IP from the corresponding jail