Not sure what the OS is, but I suspect it is some variation of Linux. I will move this thread to the Linux section so the people who knows Linux better can help you. Last time I checked, Linux is almost virus free. So I don't think you need one, like Wanamingo says, don't do it. But that may change, so you better check with the experts on Linux forum.
audiovoodoo. I'm with you, I was confused about why this thread got moved here as well, and there really wasn't a clear question in the first posts as well, so I basically ignored this thread... well, until now