to redirect localhost port 80, try this: iptables -t nat -A PREROUTING -i lo -p tcp --dport 80 -j REDIRECT --to-port 3128 note the -i is now lo not eth0. -- .~. Might, Courage, Vision. In Linux We Trust. / v \ http://www.linux-sxs.org /( _ )\ Linux 2.4.22-xfs ^ ^ 1:22pm up 5 days, 23:53, 0 users, load average: 1.02, 1.04, 1.16