General discussion


Old NT4.0 Domain Still Shows up

By mgonzales ·
I noticed when I switched my Windows 2000 test enviroment to Native Mode, that the workstation still hold onto the Netbios name. Is that a permanent setting or will that go away at some point?

This conversation is currently closed to new comments.

Thread display: Collapse - | Expand +

All Comments

Collapse -

by timwalsh In reply to Old NT4.0 Domain Still Sh ...

This is permanent.

At the time an AD domain is created, it is actually assigned two domain names: the AD domain name ( and a NetBIOS domain name (MYDOMAIN - defaults to the portion of the AD domain name prior to the TLD extension). Once the domain has been created, neither domain name can be changed.

There is trick here also. If the AD domain is being created from scratch (i.e. not a migration), at the time you specifiy the AD domain name, you can also change the NetBIOS domain name from the default. But if you migrate an NT4 domain to AD, the NetBIOS domain name automatically defaults to the previous NT domain name and CANNOT be changed.

The reason for the NetBIOS domain name (regardless of the type of installation) is so that Windows clients prior to Win2K (those that don't understand AD) can connect to the AD domain. AD accomplishes this by using the lowest common denominator (the NetBIOS domain name) in both Network Neighborhood (or My Network Places), and the Log-on box.

Collapse -

by mgonzales In reply to

Poster rated this answer.

Collapse -

by mgonzales In reply to Old NT4.0 Domain Still Sh ...

This question was closed by the author

Related Discussions

Related Forums