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AD Trusts and Domain / Forest Functional Level

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  • AD Trusts and Domain / Forest Functional Level

    I have 2 domains - in 2 forests:

    win2k3.mycompany.com
    nt4.mycompany.com

    These 2 forests / domains have trusts set up.

    Currently - my win2k3 domain is at Windows 2000 mixed mode and my forest is at Windows 2000 mode

    My question is - can I raise my domain functional level to Windows 2003 and maintain the trust relationship between the domains / forests?

    I know that within a forest - I cannot promote my domains to a windows 2003 functional level if I have a 2000 or NT4 DC - but in this case - the NT DC is in a different forest.

    Thanks in advance
    sb

  • #2
    Re: AD Trusts and Domain / Forest Functional Level

    If it is a different forest, you can do whatever you like
    Tom Jones
    MCT, MCSE (2000:Security & 2003), MCSA:Security & Messaging, MCDBA, MCDST, MCITP(EA, EMA, SA, EDA, ES, CS), MCTS, MCP, Sec+
    PhD, MSc, FIAP, MIITT
    IT Trainer / Consultant
    Ossian Ltd
    Scotland

    ** Remember to give credit where credit is due and leave reputation points where appropriate **

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    • #3
      Re: AD Trusts and Domain / Forest Functional Level

      So even if my win2k3 domain and forest are raised to Windows 2003 functional level, I can still have trusts to the NT4 domain / forest and my users will be able to access resources in the NT domain?

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      • #4
        Re: AD Trusts and Domain / Forest Functional Level

        Originally posted by stephenmbell View Post
        So even if my win2k3 domain and forest are raised to Windows 2003 functional level, I can still have trusts to the NT4 domain / forest and my users will be able to access resources in the NT domain?
        That is correct. After raising both functional levels the existing External trust to you NT 4 domain will remain in tact.

        -Jason
        MCSA/MCSE 2K3,MCITP:ESA,MCTS x 4,VCP x 2

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