For now, create a CSCF-INF RT request providing the name of the host, which domain (CS-TEACHING or CS-GENERAL or ...) for athentication and if the host should be restricted to a particular group of users within that domain.

You can also try to use https://www.cs.uwaterloo.ca/twiki/view/CF/ADAddUbuntu to add this host to a SCS AD Domain yourself.