Comment 1 for bug 48680

This is an interesting bug which we'll probably want to have a talk about at some point in regards to the network-authentication spec. We will be seeking to provide a clean UI for the user to join a system to a domain and will want to allow crossrealm authentication. I don't think we want to have the user have to enter a list of alternate realms, but that they should be known automatically. On top of that, new realms added after installation should be considered automatically too.