Hello All, I am using Squid proxy and IPtables Firewall through squid I am able to block Messenger and other sites but If I put this in firewall I couldnt able to block messenger $IPTABLES -t nat -A POSTROUTING -o $EXTIF -j SNAT --to $EXTIP In connection settings If I choose no proxies the Yahoo messenger easily get connected. also we use CISCO VPN client to connect Outside VPN server If I want to connect VPN I need to put that rules otherwise I wont connect. Could any one please tell How to solve my problem I want to block messengers also want to connect VPN server though client Thanks Nilesh. __________________________________ Do you Yahoo!? Check out the new Yahoo! Front Page. www.yahoo.com