First, our current setup.

I'm setting up a Samba 3.4 environment to replace our old Samba 3.0.x setup and 
make ready for Windows 7. There are several different campus locations, and 
each has it's own Samba PDC. Due to some (possibly poor) decisions made early 
in the development of the system, instead of giving each campus its own domain 
name, we used the algorithmic rid base parameter in smb.conf to manually beat 
on the numbers to make it work.

I believe this is what would fix the problem, but Anyway, here's my problem. I 
have the new Samba server set up with a different domain name and it appears to 
be working, but now users from the old domain setup can't log in. It looks like 
it's an SID problem, as the log messages are similar to:

--snip--
[2010/02/18 09:53:46,  1] rpc_client/init_netlogon.c:237(serverinfo_to_SamInfo3)
  _netr_LogonSamLogon: user DOMAINNAME\username has user sid 
S-*-*-**-**********-*********-**********-*****
   but group sid S-*-*-**-**********-*********-**********-*****.
  The conflicting domain portions are not supported for NETLOGON calls
--/snip--

Sure enough, the *'d out SID's are different, the first is the SID for the old 
domain, and the second is for the new domain. Now, I could just go and change 
the user's SID but there are a couple of problems with that. One, that's 
problematic for a system with several thousand users. Two, even if I were to do 
that, we have several users who move between campuses and would need to log in 
to several different domains, and changing SID's when they move would also be 
problematic. Maybe this is what a "roaming profile" or "trusted domain" is, but 
I'm not sure.

So here's my question: How can I set Samba up to accept logins on one domain 
with credentials from another, or is this even what I would need to get this 
working?

Thanks,
Johnathan

--
Johnathan Bell
Internet System Administrator, Baker College

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