[wlug] ADS Realm - Openfiler configuration

Hello, I am assisting the setting up of an "openfiler" server at work. www.openfiller.com Its on a network using Active Directories and I want openfiler to be visible on the network. One authentication question I have is what consitutes the ADS realm. Google search bring up lots of questions asked by other people on samba groups etc but I wonder how I can establish it from the windows configuration We've tried "tesla.local" and that seems to work to a certain extent but still can't see the computer on the Windows network. I've wondered if we haven't quite got the ADS realm or is there some other SAMBA setting the probably stopping the server being seen.