query issue

Anand Buddhdev anandb at ripe.net
Thu Mar 29 15:45:34 UTC 2012

On 29/03/2012 17:35, Paul A wrote:

Hi Paul,

> However when I query kingstonmass.org I don't see any returned answer and it
> eventually times out.
> 11:03:34.310559 2002:c690:8cc6:c:206:5bff:fe8e:334d.54795 >
> b2.org.afilias-nst.org.domain:  54297 NS? kingstonmass.org. (34)
> Again when querying this with my other DNS server it works fine. On the
> server I'm having issues with I can ping all the pingable org servers and
> the NS servers for the domain in question. 

I notice that the query is going out with an IPv6 source address. Do you
have any firewalls or router ACLs blocking DNS back to IPv6 addresses in
your network?

I also note that kingstonmass.org has delegation to 2 name servers in
the ORG zone, but 3 name servers at its apex. The additional name
server, mns01.domaincontrol.com, gives a REFUSED response to a query for
the domain.


Anand Buddhdev

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