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Remove a pre-Windows 2000 Domain Name

Windows 2003 network at fully functional 2003 state.  Migrated from an NT4 domain (also migrated an Exchange Server 5.5 to Exchange 2003 at same time).  All is well in that regard.  However, management doesn't like that you can still see and logon with the pre-Windows 2000 domain name credentials.  Example:  old domain name was ABCD (relating to a previous company name) and new domain name is xyz.abcdef.com

Although this presents no functional issues, management literally doesn't want anyone to be able to even see the ABCD old name EVER.

Is it possible to get rid of this?  If so, how bad is it?

I'm aware that I can mod the registry through group policies to enforce fully qualified names for logon, but you can still see the old ABCD when you browse the network (under Microsoft Windows Network) and, of course, you can still use it.

Thanks
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JDCIT
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JDCIT
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1 Solution
 
PlaceboC6Commented:
That is the netbios name of the network.

Even when you install a fresh 2003 domain from scratch,  it creates a netbios name like that.  Will not match the dns name,  obviously.  Limited to 15(16) characters.
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PlaceboC6Commented:
You could try disabling netbios in your environment if you don't have any legacy apps that rely on it.

Get rid of WINS if you are still using it.
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PlaceboC6Commented:
If you disable NETBIOS in your environment,  it will no longer show up in Network Neighborhood.
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JDCITAuthor Commented:
Is it possible to change the name to something else?
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PlaceboC6Commented:
I think you would have to go through a domain rename.  I usually don't feel comfortable with doing so,  but here is a link with information:

http://www.petri.co.il/windows_2003_domain_rename.htm
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JDCITAuthor Commented:
My biggest concern is the mail server.  It has a fax system (separate server/hardware/software) and a voice mail system (ditto) all hooked into it.  All that stuff is difficult enough to get coexisting in the first place.  Screwing up the mail server would be the worst possible outcome.  It is not a DC.

Any special issues which come to mind regarding Exchange 2003 with this rename?
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PlaceboC6Commented:
I personally haven't done a domain rename myself.  There is always a concern when Exchange is in the mix,  but this is typically due to the FQDN changing.  If you are only changing the netbios name,  then it might not be as bad.
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oBdACommented:
As far as the logon is concerned, you can disable the dropdown box.
Note that Users will then have to logon with the full UPN (user@xyz.abcdef.com), the user name alone will not work anymore.
8750 ยป How can I prevent a Windows XP user from toggling the Domain box during log on? 03-Dec-04
http://www.jsifaq.com/SF/Tips/Tip.aspx?id=8750
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