Dns server stop working, please help!

Discussion in 'DNS Server' started by Nuno Paulo, Oct 21, 2009.

  1. Nuno Paulo

    Nuno Paulo Guest

    I have a server with win2008 standart that as the roles off AD, DNS, DHCP and
    exchange 2007. HAve migrate from a domain more than 6 months ago and as been
    working perfectly. then yesterday network started getting on and off and
    notice that DNS had records repited diferent name same IP ( deleted some
    probably did worng to see if i would rebuild the records, witch are updated
    from DHCP server). Fisrt DNS event in is on 20.10.2009 with event ID 6702.

    Aparently the main server as all the records set up in DNS structure.

    please tell me where to begin have more than 50 people with bo mail and no
    network resources.

    Thanks in advanced

    Nuno
     
    Nuno Paulo, Oct 21, 2009
    #1
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  2. Hello Nuno,

    Do you use a single label DNS name like DOMAIN?
    http://support.microsoft.com/default.aspx/kb/914050

    Is this the only DC/DNS in the domain? Where was it migrated from? Please
    post an unedited ipconfig /all from the server.

    Best regards

    Meinolf Weber
     
    Meinolf Weber [MVP-DS], Oct 21, 2009
    #2
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  3. Nuno Paulo

    Nuno Paulo Guest

    I again sorry but this is not easy.

    when i do NSLOOKUP i get this:

    DNS request time out
    time out was 2 seconds
    default server: unknow
    address: ::1

    thanks
     
    Nuno Paulo, Oct 21, 2009
    #3
  4. Nuno Paulo

    Nuno Paulo Guest

    Hi Meinolf, thanks for your reply,

    the old DC is still online but this server is the PDC, and as been working
    for several months. the domain is XXXXX.local

    here goes the ipconfig /all


    C:\Users\Administrator>ipconfig /all

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : sedelx011
    Primary Dns Suffix . . . . . . . : Inoxxxx.local
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No
    DNS Suffix Search List. . . . . . : Inxxxxx.local

    Ethernet adapter Ligaçao de Area Local:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : HP NC373i Multifunction Gigabit
    Server Ad
    apter
    Physical Address. . . . . . . . . : 00-23-7D-34-95-68
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::9485:f444:193c:6b3c%10(Preferred)
    IPv4 Address. . . . . . . . . . . : 10.1.1.200(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Default Gateway . . . . . . . . . : 10.1.1.7
    DNS Servers . . . . . . . . . . . : ::1
    10.1.1.200
    195.22.0.33
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Tunnel adapter Ligaçao de área local*:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Placa Microsoft ISATAP
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Ligaçao de área local* 8:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
    Physical Address. . . . . . . . . : 02-00-54-55-4E-01
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    hi have changed the main name.

    i am really confuse and have all the users around me because basicly the
    network is not working

    thanks

    Nuno
     
    Nuno Paulo, Oct 21, 2009
    #4
  5. Nuno Paulo

    Nuno Paulo Guest

    Sorry i forgot, it was migrated from a 2003 server and everithing went really
    well dhcp db, AD, DNS.
     
    Nuno Paulo, Oct 21, 2009
    #5
  6. Meinolf Weber [MVP-DS], Oct 21, 2009
    #6
  7. Nuno Paulo

    Nuno Paulo Guest

    still doesn't work

    Thanks

    Nuno

     
    Nuno Paulo, Oct 21, 2009
    #7
  8. That's because there is no reverse IPv6 zone that has a PTR entry for ::1.
    Did you disable IPv6 based on Meinolf's suggestions?

    Once you've disabled IPv6 on the machine, and restarted, it should be fine,
    that is as long as you have a reverse zone for 10.1.1.0 as well as a PTR
    entry for 10.1.1.200.

    Ace
     
    Ace Fekay [MCT], Oct 21, 2009
    #8
  9. Curious, what exactly does not work? Can you be specific, as well as
    describe exactly what you've performed so far?

    Did you remove 195.22.0.33 and disable IPv6 and restart the machine?

    Also, if you see duplicate records with the same IP, this wouldn't cause
    problems to stop internet access. However, to clean up this issue, you need
    to force DHCP to own the records. Read the following on how to accomplish
    this:

    DHCP, Dynamic DNS Updates , Scavenging, static entries & timestamps, and the
    DnsProxyUpdate Group (How to remove duplicate DNS host records)
    http://msmvps.com/blogs/acefekay/ar...-timestamps-and-the-dnsproxyupdate-group.aspx



    --
    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], Oct 21, 2009
    #9
  10. Nuno Paulo

    Nuno Paulo Guest

    My DNS server is also the DC of AD and the exchange server 2007 i have the
    domain inoxxxx.local in the forward lookup zones and i still have also
    records of the old DC, but the SOA is this server. could this be an AD issue,
    i am all confused here

    thanks
     
    Nuno Paulo, Oct 21, 2009
    #10

  11. Hi Nuno

    You have an old DC that shows up in DNS?
    How was the old DC removed from the domain?
    Did you use dcpromo, or was it simply unplugged from the network?
    How long ago was it removed?

    The old records, that is if the DC no longer exists, can be deleted. And
    yes, they can cause an issue. That is why I asked the questions above. Your
    answer to each question will help evaluate and diagnose this.

    Also, please provide an updated ipconfig /all to see the changes that you
    made.

    Thank you,
    Ace
     
    Ace Fekay [MCT], Oct 21, 2009
    #11
  12. Hello Nuno,

    I agree with Ace, please describe the problems you see in detail. Also post
    an unedited ipconfig /all from a user workstation with problems.

    Best regards

    Meinolf Weber
     
    Meinolf Weber [MVP-DS], Oct 22, 2009
    #12
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