Re: [squid-users] IPTABLES + SQUID + TRANSPARENT PROXY

Hi ,

                      The following u need to do for making squid as
transparent proxy:-

iptables -t nat -A PREROUTING -i eth1 -p tcp --dport 80 -j REDIRECT
--to-port 3128

iptables -A INPUT -j ACCEPT -m state --state NEW,ESTABLISHED,RELATED
-i eth1 -p tcp --dport 3128

iptables -A OUTPUT -j ACCEPT -m state --state NEW,ESTABLISHED,RELATED
-o eth0 -p tcp --dport 80

iptables -A INPUT -j ACCEPT -m state --state ESTABLISHED,RELATED -i
eth0 -p tcp --sport 80

iptables -A OUTPUT -j ACCEPT -m state --state ESTABLISHED,RELATED -o
eth1 -p tcp --sport 80

iptables -t nat -A PREROUTING -i eth1 -s ! 192.168.1.100 -p tcp
--dport 80 -j DNAT --to 192.168.1.100:3128

iptables -t nat -A POSTROUTING -o eth1 -s 192.168.1.0/24 -d
192.168.1.100 -j SNAT --to 192.168.1.1

iptables -A FORWARD -s 192.168.1.0/24 -d 192.168.1.100 -i eth1 -o eth1
-m state --state NEW,ESTABLISHED,RELATED -p tcp --dport 3128 -j ACCEPT

iptables -A FORWARD -d 192.168.1.0/24 -s 192.168.1.100 -i eth1 -o eth1
-m state --state ESTABLISHED,RELATED -p tcp --sport 3128 -j ACCEPT

make the following changes in squid.conf:-

httpd_accel_host virtual

httpd_accel_port 80

httpd_accel_with_proxy on

httpd_accel_uses_host_header on

Thanks
Ashish Malik
Received on Wed Aug 17 2005 - 00:45:26 MDT