#!/bin/bash

IP1=$(ifconfig eth0 |grep "inet addr" | awk -F ":" '{print $2}' | awk '{print $1}')
IP2=$(ifconfig eth0:1 |grep "inet addr" | awk -F ":" '{print $2}' | awk '{print $1}')
IP3=$(ifconfig eth0:2 |grep "inet addr" | awk -F ":" '{print $2}' | awk '{print $1}')
#IP4=$(ifconfig eth1:1 |grep "inet addr" | awk -F ":" '{print $2}' | awk '{print $1}')
#IP5=$(ifconfig eth1:2 |grep "inet addr" | awk -F ":" '{print $2}' | awk '{print $1}')

/etc/init.d/iptables stop

/sbin/iptables -t mangle -A OUTPUT -m owner --uid-owner 500 -j MARK --set-mark 500
/sbin/iptables -t mangle -A OUTPUT -m owner --uid-owner 501 -j MARK --set-mark 501
/sbin/iptables -t mangle -A OUTPUT -m owner --uid-owner 502 -j MARK --set-mark 502
#/sbin/iptables -t mangle -A OUTPUT -m owner --uid-owner 503 -j MARK --set-mark 503
#/sbin/iptables -t mangle -A OUTPUT -m owner --uid-owner 504 -j MARK --set-mark 504
/sbin/iptables -t nat -A POSTROUTING -m mark --mark 500 -j SNAT --to-source $IP1
/sbin/iptables -t nat -A POSTROUTING -m mark --mark 501 -j SNAT --to-source $IP2
/sbin/iptables -t nat -A POSTROUTING -m mark --mark 502 -j SNAT --to-source $IP3
#/sbin/iptables -t nat -A POSTROUTING -m mark --mark 503 -j SNAT --to-source $IP4
#/sbin/iptables -t nat -A POSTROUTING -m mark --mark 504 -j SNAT --to-source $IP5

/etc/init.d/iptables save