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 NIC

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 ma