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Windows 2008 DHCP Not Updating DNS

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  • Windows 2008 DHCP Not Updating DNS

    server: Windows 2008 R2
    roles: domain controller, DHCP server, DNS server
    clients: Windows 2003, Windows 2008, Red Hat

    While investigating DNS records are not being updated from DHCP leases and DHCP reservations, I checked the DNS tab in the IPv4 Properties (see screen shot below).

    There is a check box for

    "Enable DNS dynamic updates according to the settings below"

    which is checked.

    The two settings below are

    "Dynamically update DNS A and PTR records only if requested by the DHCP clients"


    "Always dynamically update DNS A and PTR records"


    (1) neither of those options have check boxes associated with them, and

    (2) they are mutually exclusive options

    Am I just crazy, need my morning coffee, or is something wrong here?
    Attached Files
    Last edited by Robert R.; 20th January 2011, 18:36.