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Same Netbios Name but Different DNS Names

We have an old 2000 AD (No Exchange, just a single server for login and file share)
   DNS Domain Name = companya.com
   Netbios Name = companya

We have setup a new 2003 AD  (Exchange 2K7, SQL Server 2005, the works)
   DNS Domain Name = companya.intra
   Netbios Name = companya

So the DNS Names are different but the Netbios names are the same.  I just started with the company and the new system is going to be housed at a data center.  We are connecting the Data Center to the corporate office on Friday.  In just found out about the local 2000 AD and discovered the naming problem.  Will I have a problem having both on the same LAN with the same Netbios names.  I do not plan on migrating any users so I will not need a trust.  I will migrate data via USB Drive.

Thanks for the help.
1 Solution
You could disable netbios in the environment if you don't have any legacy apps or a need to browse the network neighborhood on clients.

I would need to duplicate this in a lab environment to see what would happen with two domains having the same netbios name on the same network.

It may not be too much of an issue if they are not in the same subnet....since netbios is broadcast based (without WINS).

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