[dns-operations] Odd queries from win2k3 box with MSDNS and IPv6

Brielle Bruns bruns at 2mbit.com
Wed Jun 22 16:15:50 UTC 2011

On 6/22/11 10:00 AM, Jeroen Massar wrote:
> On 2011-06-22 17:31 , Brielle Bruns wrote:
>> Hello All,
>> I asked this question on another list, but got no answer, so I figured
>> I'd try here.
>> We're seeing alot of weird A record queries from a MS DNS server on
>> Win2k3 (yes, I know, it wasn't my choice to run these).  For example,
>> ::1.somedomain.com
> What is the record type this is being asked for? Also, you might want to
> index a little bit what tools are running on the host and check if the
> hosts file in %WINDOWS%\system32\drivers\etc\hosts contains the ::1 or not.

Thanks Jeroen.

Its looking for A records - only noticed it while doing a protocol dump 
trying to figure out why stats on two recursors for query failures was 
so high.

Hosts file ended up being clean, nothing there relating to v6.

However, the machine in question is running BackupExec and the Meinberg 
NTP server.  I'm going to take the server down for a little bit after 
hours and try and figure out if its one of those two.

Given that MS's own services support ipv6 even if their console snapins 
and GUIs don't, I'm inclined to not think its SQL server or another MS 

Brielle Bruns
The Summit Open Source Development Group
http://www.sosdg.org    /     http://www.ahbl.org

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