Re: windows 2008 dc registration

Discussion in 'DNS Server' started by Ace Fekay [Microsoft Certified Trainer], May 20, 2009.

  1. "Graham Turner" <> wrote in message news:...
    > dear all, we have issue with the introduction of a windows 2008 dc in
    > to a windows 2000 forest, that i think is dns related.
    > the w2k8 dcpromo seems to have completed, such that it has a copy of
    > the directory, but in going through the 'standard' diag tests to
    > verify, we get a failure of the DNS test.
    > if we look in to the DNS zone (hosted as an interim step) on a windows
    > 2000 dns server we see the A and PTR records registered, but none of
    > the DC records such as _msdcs etc ..
    > i just wanted to get any known view of issues of w2k8 dc records
    > registering on a w2k dns server, before i proceed with a fuller debug
    > of the dns registration.
    > Thanks

    Hi Graham,

    I would suggest to move DNS to the new server.

    But in the meantime, are there any errors showing up in the event viewer of any of the DCs?

    Are other machines still able to register?

    I assume that the 2000 DNS server is the only IP on the 2008 machines.


    This posting is provided "AS-IS" with no warranties or guarantees and
    confers no rights.

    Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSA Messaging, MCT
    Microsoft Certified Trainer

    For urgent issues, you may want to contact Microsoft PSS directly. Please
    check for regional support phone numbers.

    "Efficiency is doing things right; effectiveness is doing the right things." - Peter F. Drucker
    Ace Fekay [Microsoft Certified Trainer], May 20, 2009
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  2. "Graham Turner" <> wrote in message news:...
    ace, thanks for the post back. i do recall corresponding with you many
    years back on dns, so i hope you are well !

    i agree with suggestion to move DNS to the newer w2k8 - this will be
    a strategic goal, but need to consider an interim step of w2k8 domain
    controllers (not running DNS) configured with w2k dns server.

    to put this in to context, we are doing the testing of a forest
    upgrade to w2k8 from w2k, so adprep etc , dcpromo etc which all
    (apparently) has gone ok

    dns functionality (from w2k8 domain member to w2k) would seem to be
    ok, as the tasks of domain join, dcpromo completes ok., such that we
    can access the directory from ADUC on w2k8.

    we run dcdiag by way of procedure to verify a DC installation., which
    leads us to the apparently failed dns, confirmed by review of the
    [missinfg] DNS zone data on the w2k DNS server.

    there are no event log entries that look relevant

    wasnt' quite sure what you meant by the last qu. ?
    for info, the w2k8 server has the ip addresses of the 2 x w2k dns
    servers in its IP config if that is what u mean

    initial thoughts that i consider are perhaps that the w2k8 dc is
    trying to register records (ip6 ??) that the w2k is simply rejecting,
    and causing failure of other zone data.

    all other w2k8 configuration could be assumed to be default (we have
    not yet disabled IP6)



    You can disable IPv6, just in case it is the problem, but I don't think it is. Here are the instructions. Try a manual registration afterwards:
    ipconfig /registerdns
    net stop netlogon
    net start netlogon

    Disabling IPv6
    With errors regarding to Outlook Anywhere, such as to fix an NSPI issue on port 6004, Disable IPv6 in registry on the Exchange server.
    Or to or to simply disable IPv6 on any server:

    Uncheck IPv6 in NIC properties
    Uncheck the two LinkLayer Topology Discovery components
    Then follow the registry changes procedure below to completely disable IPv6.

    1. Navigate to:
    2. In the details pane, click New, and then click DWORD (32-bit) Value.
    3. Type in DisabledComponents , and then press ENTER.
    4. Double-click DisabledComponents,
    5. Type ff in Hexadecimal.
    6. So it should like this when completed:

    More info:

    The installation of the Exchange Server 2007 Hub Transport role is unsuccessful on a Windows Server 2008-based computer

    Disabling IPv6 on Windows 2008 or Vista

    Ace Fekay [Microsoft Certified Trainer], May 20, 2009
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