external trust to forest trust

Discussion in 'Active Directory' started by Sander, Nov 26, 2008.

  1. Sander

    Sander Guest


    I have 2 forests: forest1 and forest2. There is an external trust between
    subdomain1.forest1 and subdomain2.forest2. Now we need trusts between other
    subdomains and we plan to use a forest trust now.

    Question: how to migrate from an external trust to a forest trust?

    Both forests are already at the right domain and forest functional level
    (2003) DNS conditional forwarding is setup. I have tested in a test
    environment: it is not possible to create a forest trust when an external
    trust is already in place.

    Maybe I am answering my own question now, but is the answer to delete the
    external trust and then create the forest trust the way to go?

    Sander, Nov 26, 2008
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  2. Sander

    Jorge Silva Guest

    Yep, to create the Forest trust you need to give up of the External Trust
    for the same forest.

    I hope that the information above helps you.
    Have a Nice day.

    Jorge Silva
    MCSE, MVP Directory Services

    Please no e-mails, any questions should be posted in the NewsGroup
    This posting is provided "AS IS" with no warranties, and confers no rights.
    Jorge Silva, Nov 26, 2008
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  3. Hello Sander,

    Yes, your own view is correct with deleting the old ones and create a new

    Best regards

    Meinolf Weber
    Meinolf Weber, Nov 27, 2008
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