[Pdns-users] bogus ANY query type for recursor

Tomas Brandysky tbrandysky at suse.cz
Thu Apr 20 08:00:35 UTC 2006

Hash: SHA1

bert hubert wrote:
> On Thu, Apr 20, 2006 at 09:30:42AM +0200, Tomas Brandysky wrote:
>> we are using Pdns 2.9.20 with pdns-recursor enabled.
>> We have noticed a problem when 'ANY' type request is sent for one
>> specific domain besides queries for other domains are ok.
> I can't reproduce this problem with 3.0 branch of the pdns-recursor.
> Can you try to reproduce with
> http://svn.powerdns.com/pdns-recursor-3.0-pre4-snapshot.tar.bz2
> ?

Nope. We have tested pre3 RPM package (due to compile problems with
pre4) and everythings seems to work fine ;)

>> In nutshell, it seems that pdns-recursor has problem asking ONLY
>> seznam.cz domain for ANY type. It should return something like this:
> Have you verified asking seznam.cz ANY directly to the recursor with nothing
> in between?

yes, directly recursor as well as pdns which is between, but result is
the same

> What I think is happening is that 2.9.20 is sending back a packet that is
> truncated (>512 bytes), and that the main powerdns can't handle that.
> The newer pdns_recursor creates smaller packets.
>> ;; MSG SIZE  rcvd: 492
> With the old recursor, it is very well possible that you'd exceed 512.

It seems it could be our problem.


> Good luck!
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