change netbios domain name after migration

Discussion in 'Server Migration' started by Adam, Sep 21, 2005.

  1. Adam

    Adam Guest

    Is there a way to change the netbios domain name? For example, when we join
    a new pc/laptop to our domain it joins using the old netbios name. So when
    you log into the pc/laptop you see the old nebios domain name in the domain
    field. We did an in place upgrade from NT4. It is not causing any conflicts
    but just anoying!

    Adam, Sep 21, 2005
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  2. Adam

    Per W. Guest


    /Per W.
    Per W., Sep 22, 2005
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  3. Hi Adam,

    As I know, it is expected behavior that the NetBIOS domain name is
    displayed in the Windows Logon window. This is because that not all the
    available domains have DNS domain names. For example, many corporations'
    network still contains Windows NT domains. Therefore, for backward
    compatibility considerations, the NetBIOS names are listed on the logon
    window. However, as the list is just for the user to choose a suitable
    logon domain, this design will not affect the domain usage.

    Also, this behavior is not changed in Windows Server 2003 AD domains, even
    after upgrading the domain functional level. When upgrading a Windows NT
    domain to Windows Server 2003, we are prompted to provide a DNS domain
    name. However, the old Windows NT NetBIOS domain name must be kept. In
    other words, we cannot change the NetBIOS name during the upgrade.

    I would like to suggest that you do not make any changes on the current
    domains if it is acceptable to choose ABC NetBIOS domain name in the logon
    list, as all the possible solutions so far are very complicated and have
    potential risks.

    Having said that, I would like to suggest you use one of the following
    possible solutions to change the NetBios domain name.

    IMPORTANT CAUTION: 1). The domain rename procedure has not been
    extensively tested in large installations. Microsoft cannot guarantee that
    everything will function well after changing the domain name. Please
    perform complete backup for your domain first and use the method at your
    own risk. 2). No matter which method you will finally use, please perform a
    complete backup for your domain first.

    1. Use RenDom.

    Note: As I know, rendom.exe is a possible solution. However, it is a very
    complex, multi-step process and could cause potential problems during the
    rename process. In most cases, it requires modifications on all domain
    controllers and on all domain members (servers and workstations), and
    should NOT be considered a routine operation.

    Windows Server 2003 domain first includes a new feature of domain rename by
    using a new tool called RenDom.exe (Windows Server 2003 domain rename tool).

    Reference on RenDom:

    Step-by-Step Guide to Implementing Domain Rename

    Understanding How Domain Rename Works

    Windows Server 2003 Domain Rename Tools

    Please Note: The Windows Server 2003 domain rename tools have special
    requirements, especially on the Exchange side. Actually, the Windows Server
    2003 domain rename tools were originally designed to rename domains in
    Active Directory services forests that do not contain Exchange computers.
    This limitation occurred because renaming a domain affects a number of
    Exchange attributes and there was no method to repair these Exchange
    attributes. Because of this, the domain rename operation is not supported
    in forests that contain Microsoft Exchange Server 5.5 computers or
    Microsoft Exchange 2000 Server computers.

    Exchange 2003 supports the domain rename operation because it is compatible
    with the Exchange Domain Rename Fix-Up tool. The Exchange Domain Rename
    Fix-Up tool repairs Exchange attributes after a domain rename operation is

    For more information please refer to:

    838623 TechNet Support WebCast: Renaming domains when Microsoft Exchange

    Exchange 2003: Domain Rename Fixup (XDR-Fixup)

    2. We have a safer option: Install a new domain with the correct domain DNS
    and NetBIOS name (it can be either a Windows 2000 or a Windows Server 2003
    domain), use Active Directory Migration Tool (ADMT) to migrate necessary
    domain data (including user accounts, groups, client computers, security
    settings) to the new domain, perform thorough tests in the new domain, and
    then remove the old domain.

    For more information regarding ADMT, please refer to:

    Active Directory Migration Tool Overview

    Download details: Active Directory Migration Tool v.2.0

    DomainMig.chm in the ADMT installation folder (this file contains very good

    3. Just for your reference, we are able to code a customized Windows Logon
    window. If necessary, you can have your developer team write a Graphical
    Identification and Authentication (GINA) DLL to only display DNS mode
    domain names in the logon window. I would like to provide the following
    information, which may assist you or your developer team.

    The Essentials of Replacing the Microsoft Graphical Identification and
    Authentication Dynamic Link Library

    Gina Sample: Graphical Identification and Authentication DLL

    Also, if you or your developer team needs more information regarding the
    GINA programming, I would like to suggest that you use our developer
    newsgroups. The developer newsgroups are located at:

    This is just a method for your reference. It requires coding a new GINA
    DLL, and replacing the GINA DLL on all of the domain members. Personally, I
    do not think it is a good idea for this situation but just a possible
    solution for your reference.

    Hope it helps.


    Ada Pan

    Microsoft Online Partner Support
    Get Secure! -
    When responding to posts, please "Reply to Group" via your newsreader so
    that others may learn and benefit from your issue.
    This posting is provided "AS IS" with no warranties, and confers no rights.
    Ada Pan [MSFT], Sep 22, 2005
  4. Adam

    Adam Guest

    Thanks for all the info. It sounds like I'm keeping my netbios domain name!
    No big deal
    Adam, Sep 22, 2005
  5. Hi Adam,

    I am glad to hear the information helps. If you have any questions, please
    feel free to submit your questions in the newsgroup. We are glad to be of


    Ada Pan

    Microsoft Online Partner Support
    Get Secure! -
    When responding to posts, please "Reply to Group" via your newsreader so
    that others may learn and benefit from your issue.
    This posting is provided "AS IS" with no warranties, and confers no rights.
    Ada Pan [MSFT], Sep 23, 2005
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