I am fairly new to Linux...and I can't seem to get the hang of configuring a network card for a static IP address. I have a server I'm converting to Linux that resides behind a Linksys wireless router connected to the internet through my phone company. I do have a static IP address from the phone company. I would like to configure the network card so that it has a static IP address instead of obtaining an address from the router using DHCP. However, every time I try to configure the network card for a static address, I seem to screw everything up, and the server is no longer able to transmit mail over the internet to external addresses (I'm obviously configuring something wrong). If I let the network card obtain an IP address from the router using DHCP, everything works find; however I have to reconfigure the router to route the different ports to the server every time the network IP address changes, which is a major pain. Is there anyone out there who is willing to help me with this? I would appreciate any assistance you can offer.