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Establish AD Trust between AD forest with the same DNS name

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  • Establish AD Trust between AD forest with the same DNS name

    Is it possible to establish AD trust between two AD forests with the same DNS name? Both AD forests have the same DNS name, but they have different NETBIOS names.

  • #2
    Re: Establish AD Trust between AD forest with the same DNS name

    according to that looks like a no
    http://social.technet.microsoft.com/...2-954b0c9d4d45

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    • #3
      Re: Establish AD Trust between AD forest with the same DNS name

      Confirmed...no trust can be established if the FQDNs are the same between the two trusts, even if the NetBIOS names are different. You'll need to rename the FQDN of one of the domains (not a simple task).

      You cannot get a grasp on how important the planning that is involved in just naming AD until you reach this point.
      JM @ IT Training & Consulting
      http://www.itgeared.com

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      • #4
        Re: Establish AD Trust between AD forest with the same DNS name

        To create trust NetBIOS, FQDN, SID of the domains must be unique.
        So in your case, since you have same FQDN you cannot create trust.

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