How to Unban an IP properly with Fail2Ban

With Fail2Ban before v0.8.8:

fail2ban-client get YOURJAILNAMEHERE actionunban IPADDRESSHERE

With Fail2Ban v0.8.8 and later:

fail2ban-client set YOURJAILNAMEHERE unbanip IPADDRESSHERE

The hard part is finding the right jail:

  1. Use iptables -L -n to find the rule name…
  2. …then use fail2ban-client status | grep "Jail list" | sed -E 's/^[^:]+:[ \t]+//' | sed 's/,//g' to get the actual jail names. The rule name and jail name may not be the same but it should be clear which one is related to which.

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