AD Trust between two domains with same NETBIOS name

Annas Umair 1 Reputation point
2021-03-14T19:19:40.513+00:00

Hi All,

We have Domain A and Domain B with same NETBIOS name. We were looking to migrate users and machines from Domain B to Domain A and then eventually decommission Domain B. Can we create a trust between the two domains? If not what options do we have?

Domain A is on 2016 DFL and FFL
Domain B is on 2012R2 DFL and FFL.

Thanks for the help in advance.

Active Directory
Active Directory
A set of directory-based technologies included in Windows Server.
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  1. Fan Fan 15,321 Reputation points Microsoft Vendor
    2021-03-15T00:31:11.117+00:00

    Hi,
    Based on my research, you must resolve the conflict for the Netbios Name.
    So we need to rename one of the domain names.
    https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2003/cc738208(v=ws.10)?redirectedfrom=MSDN
    Second,

    For how to create a trust between forests, you can refer to :
    https://rdr-it.com/en/active-directory-trust-relationship-between-two-forests-domains/

    It is also the suggested method to migrate users and machines through the ADMT tool.
    More information for your reference:
    https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/cc974332(v=ws.10)

    This response contains a third-party link. We provide this link for easy reference. Microsoft cannot guarantee the validity of any information and content in this link.

    Best Regards,