Setting up DNS for virtual domains

I'm going to try to explain this as bast I can though my understanding of a lot of these issues is shaky at best. I help admin the student computing organization's servers at my school. We would like to offer full virtual domain service to our users, but we do not have a 2nd level domain -- our

Trouble with internal network

I'm trying to get an internal network working so that I can set up IP masquerading for a few Windows boxen (side question: anyone know what IPs to block to prevent @home from probing for home networks?). I've decided to use IP aliasing after struggling with my secondary NIC (an eepro). My main