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AnnasUmair-3906 avatar image
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AnnasUmair-3906 asked ·

AD Trust between two domains with same NETBIOS name

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.

windows-active-directory
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1 Answer

FanFan-MSFT avatar image
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FanFan-MSFT answered ·

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://docs.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://docs.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,

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Are you sure we can create the trust and its not an issue?
The NETBIOS name of both the domains is same. I have read in an artcile that it has to be unique? Can you please confirm once again?

0 Votes 0 ·

Hi,
I'm so sorry for mistakes.
I did a test in my lab, the trust can't be created with the same Netbios name.
I edit the content i posted before.

Best Regards,

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