Originally Posted by aamdevan
hi i am new in linux..i have to configure a firewall server for my office.we r using RHEL5.0,we have public ip for web server and mail server..thats ip also use to connect client system for internet access
Pl see my network arch
See this tutorial on iptables
It should help you better understand how it works, and how to configure rules to do what you want. If you have specific problems, please post them back, and we can help you. I doubt anyone is going to write your firewall rules for you, and if they did....*I* certainly wouldn't use them, unless I understood them....
FYI, you DO realize that you just published your network IP addresses out onto the Internet, for anyone to see???