Hi All, I have two linux machinces. I want to forward specific ports from mahince1 to machine2. Machine1: Having 2 Network Interfaces, One interface is connected to the Internet with Static IP, and the second one is private IP connected to LAN. Machine2: Having 1 Network Interface configured with private IP. This host is my mail server(postfix). I am using Machine1 as relayhost. All my local users are accessing their mails from Machine2. I want to Forward POP3, IMAP and HTTP ports from Machine1 to Machine2, when my users access mails from internet. Please Help me in this. Thanks & Regards, Ranjith Kumar