Zone Not Loaded by DNS Server

Discussion in 'DNS Server' started by newbies, Dec 30, 2009.

  1. newbies

    newbies Guest

    Hello, We have 2 local DNS server in the office. When I open the DNS console
    from first local DNS server, I noticed that out of 57 zones under forward
    lookup, there are 4 zones which always fail to load by dns server. But when I
    open the DNS console from second local DNS serverin a same time, those 4
    zones under forward lookup are up and running. There are also times that
    those 4 zones get an error(fail to load by dns server) from the first local
    DNS server but not from the second local DNS server. Can someone help to
    engligthen here of what we experience the cause of the error? Thank You.
     
    newbies, Dec 30, 2009
    #1
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  2. We'll need more info to better respond.

    1. Are the DNS servers domain controllers? If so, please provide an unedited
    ipconfig /all from the two DCs.

    2. How many DNS servers do you have?

    3. What type of zones are they? Primary AD Integrated, Standard Primary, or
    Secondary zones?

    4. If not AD integrated, what the zone's relationship between the two
    "local" DNS servers?

    5. Any errors in any of the Event logs?


    --
    Ace

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

    Please reply back to the newsgroup or forum for collaboration benefit among
    responding engineers, and to help others benefit from your resolution.

    Ace Fekay, MCT, MCITP EA, MCTS Windows 2008 & Exchange 2007, MCSE & MCSA
    2003/2000, MCSA Messaging 2003
    Microsoft Certified Trainer

    For urgent issues, please contact Microsoft PSS directly. Please check
    http://support.microsoft.com for regional support phone numbers.
     
    Ace Fekay [MCT], Dec 31, 2009
    #2
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  3. newbies

    newbies Guest

    Hi Ace,

    1.) Yes, the DNS servers are domain controllers.

    For DC1 -> ipconfig /all

    Windows IP Configuration

    Host Name ...............................: MNDC1
    Primary Dns Suffix ....................: sbs.com
    Node Type ...............................: Unknown
    IP Routing Enabled ....................: No
    WINS Proxy Enabled .................: Yes
    DNS Suffix Search List ..............: sbs.com

    Ethernet adapter Local Area Connection 2:

    Connection-specific DNS Suffix . :
    Description ..............................: HP NC7782 Gigabit Server Adapter
    Physical Address ......................: 00-13-21-0C-85-82
    DHCP Enabled ..........................: Yes
    Autoconfiguration Enabled .........: Yes
    Autoconfiguration IP Address .....: 169.254.90.137
    Subnet Mask ............................: 255.255.0.0

    Ethernet adapter Local Area Connection:

    Connection-specific DNS Suffix .: sbs.com
    Description .............................: HP NC7782 Gigabit Server Adapter #2
    Physical Address .....................: 00-13-21-0C-85-83
    DHCP Enabled .........................: No
    IP addresss .............................: 10.121.20.1
    Subnet Mask ...........................: 255.255.0.0
    Default Gateway ......................: 10.121.1.1
    DNS Server .............................: 10.121.20.2
    10.121.20.1
    Primary WINS Server ...............: 10.121.20.1
    NetBIOS over Tcpip...................: Disabled


    For DC2 -> ipconfig /all

    Windows IP Configuration

    Host Name ...............................: MNDC2
    Primary Dns Suffix ....................: sbs.com
    Node Type ...............................: Hybrid
    IP Routing Enabled ....................: No
    WINS Proxy Enabled .................: No
    DNS Suffix Search List ..............: sbs.com

    Ethernet adapter Local Area Connection 2:

    Connection-specific DNS Suffix . :
    Description ..............................: HP NC7782 Gigabit Server Adapter
    #2
    Physical Address ......................: 00-11-85-69-E3-4C
    DHCP Enabled ..........................: Yes
    Autoconfiguration Enabled .........: Yes
    Autoconfiguration IP Address .....: 0.0.0.0
    Subnet Mask ............................: 0.0.0.0
    Default Gateway .......................:
    DHCP Server ............................: 255.255.255.255

    Ethernet adapter Local Area Connection:

    Connection-specific DNS Suffix .:
    Description .............................: HP NC7782 Gigabit Server Adapter
    Physical Address .....................: 00-11-85-69-E3-4D
    DHCP Enabled .........................: No
    IP addresss .............................: 10.121.20.2
    Subnet Mask ...........................: 255.255.0.0
    Default Gateway ......................: 10.121.1.1
    DNS Server .............................: 10.121.20.1
    10.121.20.2


    2.) We have a total of 16 DNS server, 2 from our local office and 14 from
    remote offices.

    3.) Three Secondary zones and One Primary AD - Integrated. Those 3
    Secondary Zones are usually experiencing the error.

    4.) --

    5.) Could not find related Error logs from Event Viewer
     
    newbies, Dec 31, 2009
    #3

  4. Thank you for posting the requested info. I see the problem. There are
    multiple NICs, and the undesired IP address, and in the one case, the
    169.254.x.x APIPA number is registering into DNS. Keep in mind, all DCs,
    clients, etc, all query DNS to "find" domain controllers. If there is an
    undesired address, such as this, and if this address is given for the query
    response, the clients, or DC to DC communication will fail.

    Disable the unused NICs in Network Connections. Then run:
    ipconfig /registerdns
    net stop netlogon
    net start netlogon

    Then go through DNS with a fine tooth comb and remove any unwanted IPs for
    any of the DCs that do not belong.

    If any of the other DCs are multihomed, that *WILL* cause problems, too, and
    is suggested to never multihome a DC for the above reason.

    Also, I see that WINS proxy is enabled on MNDC1. Any reason why?

    For multihoming or simply forgetting to disable an unused NIC, and what it
    does, please read my blog on multihomed DCs for the full blown explanation.

    Multihomed DCs with DNS, RRAS, multiple IPs, and/or PPPoE adapters
    http://msmvps.com/blogs/acefekay/ar...-dcs-with-dns-rras-and-or-pppoe-adapters.aspx

    Ace
     
    Ace Fekay [MCT], Dec 31, 2009
    #4
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