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Demoting DC while People are Authenticated Against It

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  • Demoting DC while People are Authenticated Against It

    So...I want to demote a DC but it has been suggested to me that if I demote it while users are authenticated against it, they'll have trouble with e-mail.

    I can't find any documentation to support this. Does anyone have any info?

    We're running Exchange 2k3 and the DC and Exchange servers are different boxes. We're at the Windows 2k3 domain functional level.

    Thanks.

  • #2
    Re: Demoting DC while People are Authenticated Against It

    They'll only have trouble briefly if their machine or the Exchange server is currently using that DC for AD lookups. Oncwe the client machines and the Exchange server "rehome" themselves to the remaining DC everything will be fine.

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    • #3
      Re: Demoting DC while People are Authenticated Against It

      DCPromo servers out would normally be done out of hours I would suspect (if possible). Just make sure no-one has it set for primary dns (if you are removing that too)
      cheers
      Andy

      Please read this before you post:


      Quis custodiet ipsos custodes?

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      • #4
        Re: Demoting DC while People are Authenticated Against It

        How often does Exchange re-home for AD queries?

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        • #5
          Re: Demoting DC while People are Authenticated Against It

          Originally posted by mhashemi View Post
          How often does Exchange re-home for AD queries?
          if I am not mistaken the DS query on the Exchange is every 5 min'

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