[Samba] Migrating from a WinNT 4 PDC to Samba 3 PDC Troubles

[Nathaniel Grier]

Hi,

I've been in the process of attempting a transition from our current NT 4.0 
PDC to Samba 3.0.4 on linux (Debian running the 2.4.18 kernel). I can get 
the smbd/nmbd up and running just fine and configure them by hand or with 
SWAT and the changes are saved.

I've been following the HOWTO's and get stuck at the net rpc vampire step:
I am able to join the linux machine, call it SERVER2, successfully to the 
domain, DOM. However, when I call 'net rpc vampire -S SERVER1 -U 
Administrator%secret' I get the error that my current domain and that of 
the server are incompatible:
Your current domain SERVER2 (SID:xxxx) does not match the server's domain 
DOM (SID:xxx).

(Sorry, I'm paraphrasing the error output as I'm at home and don't have it 
in front of me, but it's quite straightforward and contains no more useful 
information than that.)
So even though it says that I've join the domain DOM, it still thinks I'm 
in some domain with the name of the machine SERVER2. I've checked (as per 
the error message) that the smb.conf has the
workgroup = DOM
security = user

Also, if I run pdbedit -Lv it reports that the current domain is SERVER2 
rather than DOM. Running net rpc setsid DOM simply adds the SID of the 
domain to secrets.tdb but doesn't switch its insistence of SERVER2 being 
the domain rather than DOM. A call to net rpc testjoin says things are AOK 
& that I'm in the domain DOM. Running net setlocalsid SERVER2 SID of DOM 
changes the SID of the SERVER2 domain to be the same as the of DOM, but 
just causes authentication errors when running net rpc vampire as it still 
thinks that the domains have different names.

Any suggestions as to how to resolve this problem would be most 
appreciated. I'm guessing a way to simply reset the name of the domain it 
thinks its in would work, but having not worked much with 3.0, I'm not 
sure. (I've used 2.2, but it's been a while since I've set one up and not 
in as large a network environment.)

Thanks so much,

Nathaniel Grier