#!/bin/bash

logfile=’/var/log/fail2ban.log’
fallbackjail=’sshd’

echo “Enter ip to unban:”
read ip

echo “Checking whether the ip is banned”
if [ 0 -lt `iptables -n -L|grep “REJECT”|grep “\”|wc -l` ]
then
echo “The ip $ip is banned”
else
echo “The ip $ip is not banned, ABORTING”
exit
fi

echo “Trying to guess the jail name from $logfile”
jail=`grep “Ban $ip$” $logfile|cut -d ‘[‘ -f 3|cut -d ‘]’ -f 1`
if [ 0 -lt ${#jail} ]
then
echo “Found jail $jail for this ip”
else
echo “No jail found assuming $fallbackjail”
jail=$fallbackjail
fi

echo “Checking that jail exists”
exists=`fail2ban-client status|grep “$jail”`
if [ 0 -lt ${#exists} ]
then
echo “Jail $jail exists”
else
echo “Jail $jail doesn’t exist, ABORTING”
exit
fi

echo “Unbanning ip $ip from jail $jail”
fail2ban-client set $jail unbanip $ip