On 09/20/10 07:53 AM, bert hubert wrote:
On Mon, Sep 20, 2010 at 07:32:51AM +0200, Thomas Mieslinger wrote:
we're using pdns recursor for out company internal name resolution.
[..]
containing answer has the NXDOMAIN Bit set.

Can you elaborate a bit more? I think this issue is ""fixed"" in 3.3, which
[..]
Let me know if this solves your problem.

Hi Bert,

I installed pdns_recursor 3.3-rc3 from svn.powerdns.com. Sorry, my Problem isn't gone...

I did some packet dumping ...

dig db686.XXX.de @recursor

tcpdump on the recursor:
IP recursor.38240 > authdns.53: 19990 A? db686.XXX.de. (38)
IP authdns.53 > recursor.38240: 19990 NXDomain*- 1/1/0 CNAME[|domain]

The answer packet contains

db686.XXX.de IN CNAME db686.YYY.de

And has the AUTHORITY bit set.

At this point I would like the recursor to try another resolution with db686.YYY.de but that would probably break the code and the idea behind DNS.

So now, that I understood my problem, I don't think the code needs to be fixed :-(

Regards Thomas

--
Thomas Mieslinger

1&1 Internet AG - IT Operations Data Services Infrastructure
Brauerstraße 48 · DE-76135 Karlsruhe
Telefon: +49 721 91374 4404
[email protected]

Amtsgericht Montabaur / HRB 6484
Vorstände: Henning Ahlert, Ralph Dommermuth, Matthias Ehrlich, Thomas Gottschlich, Robert Hoffmann, Markus Huhn, Hans-Henning Kettler, Dr. Oliver Mauss, Jan Oetjen
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