I have a dmz setup on my firewall and want to make a pin-hole so I can run xdm off of my linux box, does anyone know what port xdm is using? I have a linux firewall book and it says that X Display Login Manager uses port 177 on upd, and X11 runs on 6000+n using tcp, but I have no idea what 6000+n means.... Thanks Rodney Ray Children's Hospital and Clinics Data Warehouse Developer 651-855-2560 rodney.ray at childrenshc.org