[Pdns-users] Recursion failing on certain records?

[Darren Gamble]

Hi Kirk,

I spent a few minutes looking at how these two zones are set up on both
the authoritative server and the provider

I can say with certainty that both zones are configured in a way that
PowerDNS versions prior to 3.1.2 don't handle properly.  This is the
cause of your problem.  I will bet that if you were to query the 2.X
server for the NS records for this zone when it is broken, you will see
a single, broken NS record that is not present on the 3.1.2 server at
all.

More recent pdns versions have lots of other useful fixes, too.

FYI,

============================
Darren Gamble
Planner, Regional Services
Shaw Cablesystems GP
630 - 3rd Avenue SW
Calgary, Alberta, Canada
T2P 4L4
(403) 781-4948

> -----Original Message-----
> From: pdns-users-bounces at mailman.powerdns.com [mailto:pdns-users-
> bounces at mailman.powerdns.com] On Behalf Of Darren Gamble
> Sent: Tuesday, August 22, 2006 12:53 PM
> To: Kirk Friggstad; pdns-users at mailman.powerdns.com
> Subject: RE: [Pdns-users] Recursion failing on certain records?
> 
> Hi Kirk,
> 
> > Greetings all:
> >
> > I've been puzzling through some strangeness in our PowerDNS
> installations
> > here. Recursive queries for certain records/domains have been
failing
> > consistently for a number of weeks - two examples are:
> > 	mail.acegroup.cc
> > 	mail.hivelocity.net
> 
> This can happen for a number of reasons.
> 
> The first troubleshooting step should be asking your different
recursors
> what NS records they have for this domain, and comparing those (as
well
> as to what the authoritative server has).  Without that information
one
> can't really help.
> 
> > If I query the authoritative server, I get a SERVFAIL:
> >   $ dig @localhost mail.hivelocity.net
> 
> This query was directed at the local server, not an authoritative
server
> for this domain.
> 
> There have been a number of fixes put in 3.1.X that help it better
> resolve domains in certain corner cases.  The NS records on each
server
> will reveal the problem.
> 
> Hope this helps,
> 
> ============================
> Darren Gamble
> Planner, Regional Services
> Shaw Cablesystems GP
> 630 - 3rd Avenue SW
> Calgary, Alberta, Canada
> T2P 4L4
> (403) 781-4948
> 
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