dear friends, I have a LTSP server which running squid also. what I want is all user, including root on LTSP server must use proxy server, if not they won't be able to connect to internet. on my LTSP server there are 2 network cards, eth0 which connected to LTSP network and eth1 which connected to ADSL modem. just realize that all LTSP client actually is same as user in LTSP server itself. so, basicly all http request in port 80 generated by local user not by LTSP client. now how to redirect this port 80 request from local user to SQUID proxy server with port 8080. I've try transparant proxy: iptables -t nat -A PREROUTING -i eth1 -p tcp -dport 80 -j REDIRECT --to-port 8080 but still failure, I mean all user still can access internet without proxy. please help me. thanks. LinuxMurah.com dealer distro murah & lengkap __________________________________ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com