DNS Errors

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Dick Adams - 30 Mar 2006 21:48 GMT

We are getting the following error every 5 minutes in the DNS log:

Event Type:    Error
Event Source:    DNS
Event Category:    None
Event ID:    4000
Date:        3/30/2006
Time:        11:35:41 AM
User:        N/A
Computer:    GVFC-SBSERVER
Description:
The DNS server was unable to open Active Directory. This DNS server is
configured to obtain and use information from the directory for this zone and
is unable to load the zone without it. Check that the Active Directory is
functioning properly and reload the zone. The event data is the error code.

I have checked the settings as outlined in Article #884499 and all appears OK.

We are running behind a Comcast router.

Ipconfig reports:

Windows 2000 IP Configuration
    Host Name . . . . . . . . . . . . : gvfc-sbserver
    Primary DNS Suffix . . . . . . . : gvfc.local
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : Yes
    WINS Proxy Enabled. . . . . . . . : No
    DNS Suffix Search List. . . . . . : gvfc.local

Ethernet adapter Cable Connection:
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : LNE100TX Fast Ethernet Adapter Version
1.0
    Physical Address. . . . . . . . . : 00-C0-F0-4E-59-E5
    DHCP Enabled. . . . . . . . . . . : No
    IP Address. . . . . . . . . . . . : 10.1.10.2
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Default Gateway . . . . . . . . . : 10.1.10.1
    DNS Servers . . . . . . . . . . . : 10.1.10.1
    208.39.158.2

Ethernet adapter Local Area Connection 2:
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Intel(R) 82559 Fast Ethernet LAN on
Motherboard
    Physical Address. . . . . . . . . : 00-E0-18-26-4A-31
    DHCP Enabled. . . . . . . . . . . : No
    IP Address. . . . . . . . . . . . : 192.168.16.2
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Default Gateway . . . . . . . . . :

    DNS Servers . . . . . . . . . . . : 192.168.16.2
    Primary WINS Server . . . . . . . : 192.168.16.2

Also DNS' simple query test fails.

Suggestions please.

Thanks,

Dick Adams

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SuperGumby [SBS MVP] - 30 Mar 2006 22:57 GMT

both NIC should point ONLY to the internal IP address for DNS.

The comcast DNS servers, or IP of your router, should be supplied as
forwarders during the ICW.

> We are getting the following error every 5 minutes in the DNS log:
>
[quoted text clipped - 61 lines]
>
> Dick Adams

Reply to this Message

Dick Adams - 31 Mar 2006 21:15 GMT

Thanks for the reply.

Reran Wizard. Now have both NICs pointing only to 192.168.16.2 for DNS and
10.1.10.1 and 208.39.158.2 listed as forwarders in the DNS. Still getting
failure on the DNS test.

> both NIC should point ONLY to the internal IP address for DNS.
>
[quoted text clipped - 66 lines]
> >
> > Dick Adams

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SuperGumby [SBS MVP] - 31 Mar 2006 21:43 GMT

just to be sure, you originally had two problems

Event log error.
DNS query failure.

Are you suggesting the event log error no longer occurs?

> Thanks for the reply.
>
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>> >
>> > Dick Adams

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Dick Adams - 31 Mar 2006 22:27 GMT

Yes. And I think I found the other problem, or at least its gone away to the
extent that DNS now passes both simple and recursive tests. The Cable NIC
was first in the binding order. Once I placed the local NIC 1st it passed
the tests.

Thanks for your help and time.

> just to be sure, you originally had two problems
>
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> >> >
> >> > Dick Adams

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SuperGumby [SBS MVP] - 31 Mar 2006 22:47 GMT

no sweat, yes, the binding order would have been my next stop.

Happy SBSing.

> Yes. And I think I found the other problem, or at least its gone away to
> the
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>> >> >
>> >> > Dick Adams

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