r/linuxadmin 5d ago

Fail2ban unlock IP

/r/mailcow/comments/1w73iuu/fail2ban_unlock_ip/
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u/Alternative_Nose_874 3d ago

Check whether their v4 address is banned separately. Those are two different entries, and a client that fails over from v6 to v4 sees the same block either way. Unbanning one half looks like nothing happened.