#!/bin/bash

# (c) 2002 Ondrej Jombik <nepto@pobox.sk> [10/1/2002]

IPTABLES="/sbin/iptables"

function delete_chain() {
	echo -n "$1/$2: ";
	while [ -z "`$IPTABLES -t $1 -D $2 1 2>&1 `" ]; do
		echo -n "#"
	done
	echo " OK";
}

$IPTABLES -t filter -P INPUT ACCEPT
$IPTABLES -t filter -P OUTPUT ACCEPT
$IPTABLES -t filter -P FORWARD ACCEPT

delete_chain filter INPUT;
delete_chain filter OUTPUT;
delete_chain filter FORWARD;
delete_chain filter IN_FW;
delete_chain filter logdrop;
delete_chain filter syn-flood;

$IPTABLES -X IN_FW 2> /dev/null;
$IPTABLES -X logdrop 2> /dev/null;
$IPTABLES -X syn-flood 2> /dev/null;

$IPTABLES -t nat -P PREROUTING ACCEPT
$IPTABLES -t nat -P OUTPUT ACCEPT
$IPTABLES -t nat -P POSTROUTING ACCEPT

delete_chain nat PREROUTING;
delete_chain nat OUTPUT;
delete_chain nat POSTROUTING;

$IPTABLES -t mangle -P PREROUTING ACCEPT
$IPTABLES -t mangle -P OUTPUT ACCEPT

delete_chain mangle PREROUTING;
delete_chain mangle OUTPUT;