samba - Dec 2004 - two domains

Is it possible to have two domains in one subnet?

I have a windows 2000 server and a samba server, but I want Active 
directory running on both, and I don't want them communicating with each 
other.

Also, does Samba need to have a DNS entry for AD to work?

Please please answer me I just want to finish this.
Thank you

eric wrote:
> Is it possible to have two domains in one subnet?
Yes
>
> I have a windows 2000 server and a samba server, but I want Active 
> directory running on both,
You can't run Active Directory on *nix machines.  Samba can only be an 
AD Domain Member server.
> and I don't want them communicating with each other.
So build a Samba PDC and don't do any AD stuff.
>
> Also, does Samba need to have a DNS entry for AD to work?
Yes, but you don't want them communicating so why ask.
>
> Please please answer me I just want to finish this.
Finish what?
> Thank you