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Old 01-13-2015, 01:24 PM   #1
Castertroy87
LQ Newbie
 
Registered: Nov 2014
Posts: 1

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Linux Proxy Server Configuration


I am trying to set up a "Proxy Server" in Linux, without using Squid (Part of my project). However I have beginner's knowledge of iptables. I am using the following script from "http://www.aboutdebian.com/proxy.

#!/bin/sh
INTIF="eth1"
EXTIF="eth0"
EXTIP="`/sbin/ifconfig eth0 | grep 'inet addr' | awk '{print $2}' | sed -e 's/.*://'`"
/sbin/depmod -a
/sbin/modprobe ip_tables
/sbin/modprobe ip_conntrack
/sbin/modprobe ip_conntrack_ftp
/sbin/modprobe ip_conntrack_irc
/sbin/modprobe iptable_nat
/sbin/modprobe ip_nat_ftp
echo "1" > /proc/sys/net/ipv4/ip_forward
echo "1" > /proc/sys/net/ipv4/ip_dynaddr
iptables -P INPUT ACCEPT
iptables -F INPUT
iptables -P OUTPUT ACCEPT
iptables -F OUTPUT
iptables -P FORWARD DROP
iptables -F FORWARD
iptables -t nat -F
iptables -A FORWARD -i $EXTIF -o $INTIF -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A FORWARD -i $INTIF -o $EXTIF -j ACCEPT
iptables -t nat -A POSTROUTING -o $EXTIF -j MASQUERADE

Question is there is no packet forwarding from eth1 to eth0 (verified from wireshark, a windows is using eth1's ip address as its default gateway)

Any help would be highly appreciated!
 
  


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