#!/bin/bash
#######################################################
#                                                     #
#        Script to delete all iptables rules          #
#           @author : vijai@vijaikumar.in             #
#                                                     #
#######################################################


# Make sure only root can run our script
if [[ $EUID -ne 0 ]]; then
   echo "This script must be run as sudo or root only!" 1>&2
   exit 1
fi

if which iptables6 >/dev/null; then
    echo "iptables6 does exist!!"
    ip6tables --policy INPUT   ACCEPT;
    ip6tables --policy OUTPUT  ACCEPT;
    ip6tables --policy FORWARD ACCEPT;
    ip6tables -Z; # zero counters
    ip6tables -F; # flush (delete) rules
    ip6tables -X; # delete all extra chains
    echo "i cleared all the iptables 6 rules for you :D"
else
    echo "Sorry iptables6 doesn't exist!!"
fi

if which iptables >/dev/null; then
    echo "iptables does exist!!"
    iptables --policy INPUT   ACCEPT;
    iptables --policy OUTPUT  ACCEPT;
    iptables --policy FORWARD ACCEPT;
    iptables -Z; # zero counters
    iptables -F; # flush (delete) rules
    iptables -X; # delete all extra chains
    echo "i cleared all the iptables rules for you :D"
else
    echo "Sorry iptables doesn't exist!!"
fi