#!/bin/bash

# Set the interface you want block rules associated with
dev="eth1"

export dev
if [ $# -ne 1 ]; then
  echo "Syntax: `basename $0` <ipaddress>"
  exit
fi
if /sbin/iptables -L -n | grep -q $1; then
  /sbin/iptables -D OUTPUT -d $1/32 -j DROP
  /sbin/iptables -D INPUT -s $1 -i $dev -j DROP
  /sbin/service iptables save > /dev/null 2>&1
  echo "`date +'%Y/%m/%d %H:%M:%S'` - $1 - unblocked"
else
  echo "`date +'%Y/%m/%d %H:%M:%S'` - $1 - was not blocked"
fi