Empty responses to query

[Stringham, Steven]

So, if I understand you correctly, then your bind server would
experience the same issue? Or, is there a setting I can make to my bind
server to alleviate the issue?



-----Original Message-----
From: Mark_Andrews at isc.org [mailto:Mark_Andrews at isc.org]
Sent: Friday, February 03, 2006 2:07 PM
To: Stringham, Steven
Subject: Re: Empty responses to query


>
> Ok. I agree with you. But, why does it get the right info upon restart

> of the service then? And then after a while, it just floats away? Is
> it dropping the records from cache but not the right ns info, or what?

	Because on the first queries is is using the glue NS records
	from the parent.  Once one of these returns the child's NS
	RRset, in the authority section, lookups fail as there are
	no A/AAAA records for these NS records.

	Mark


> -----Original Message-----
> From: Mark_Andrews at isc.org [mailto:Mark_Andrews at isc.org]
> Sent: Thursday, February 02, 2006 4:00 PM
> To: Stringham, Steven
> Subject: Re: Empty responses to query
>
>
> >
> > ironwoodobgyn.com
>
> 	Gross misconfiguration.
>
> ironwoodobgyn.com.      172800  IN      NS      dns1.dakotacom.net.
> ironwoodobgyn.com.      172800  IN      NS      dns2.dakotacom.net.
> ;; Received 118 bytes from 192.54.112.30#53(H.GTLD-SERVERS.NET) in 740

> ms
>
> ironwoodobgyn.com.      14400   IN      A       66.192.152.134
> ironwoodobgyn.com.      14400   IN      NS      66.192.152.155.
> ironwoodobgyn.com.      14400   IN      NS      66.192.152.154.
> ;; Received 107 bytes from 66.192.152.154#53(dns1.dakotacom.net) in
> 701 ms
>
> 	NS records take hostnames not IP addresses.
>
> 	Mark
>
> > -----Original Message-----
> > From: Mark_Andrews at isc.org [mailto:Mark_Andrews at isc.org]
> > Sent: Thursday, February 02, 2006 2:03 PM
> > To: Stringham, Steven
> > Cc: bind-users at isc.org
> > Subject: Re: Empty responses to query
> >
> >
> > > Fedora 4
> > > bind-9.2.5-3
> > >
> > > >From time to time on some domains, if I do a MX query (dig mx
> > > mydomain.com) the response comes back empty.
> >
> > 	Well if you actually told us the problem domains someone
> > 	could look at how those zones are configured.  This sort
> > 	of behaviour is usually indicative of a remote configuration
> > 	error.
> >
> > > If I restart the named process, then do the same dig, it comes
> > > back with proper information. I have seen this on multiple
> > > instances of
> > Fedora 4.
> > > I am not using upstream name servers (forwarders) to resolve.
> > >
> > > Does anybody have any hints as to what it could be?
> > >
> > > Thanks
> > > Steven Stringham
> > >
> >

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