Maintained by: NLnet Labs

[Unbound-users] Resource temporarily unavailable and query problem with unbound

Sebastian Nickel
Mon Nov 8 19:58:04 CET 2010


Hello Wouter,
> Are you out of socket-buffers?
thank you for your answer. I will try to increase the so-rcvbuf on the
system. The system is really heavy in use, so this could be a cause for
those lines.

> The domain runs software that returns malformed packets with EDNS.
It's a pity that there is still software which returns malformed
packets. But now I know that it is not unbound's fault.

Thank you...

Best regards,
Sebastian

Am Montag, den 08.11.2010, 19:35 +0100 schrieb W.C.A. Wijngaards:
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> Hi Sebiastian,
> 
> On 11/08/2010 05:05 PM, Sebastian Nickel - Hetzner Online AG wrote:
> > [1289226893] unbound[5117:1] notice: sendmsg failed: Resource
> > temporarily unavailable
> 
> Are you out of socket-buffers?
> 
> 
> > Another problem I have is a "SERVFAIL" with the domain "imgw.pl".
> 
> The domain runs software that returns malformed packets with EDNS.
> Bind 'accepts' them, but unbound does not.
> 
> dig @212.160.142.68 imgw.pl  +bufsize=1024
> ;; Warning: Message parser reports malformed message packet.
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 63400
> ;; flags: qr aa; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1
> 
> ;; QUESTION SECTION:
> ;imgw.pl.			IN	A
> 
> ;; ANSWER SECTION:
> imgw.pl.		3600	IN	A	195.187.86.13
> imgw.pl.		3600	IN	A	195.187.86.14
> 
> ;; Query time: 55 msec
> ;; SERVER: 212.160.142.68#53(212.160.142.68)
> ;; MSG SIZE  rcvd: 71
> 
> So, we have to be lenient too, and a fix is in svn r2339 (not in 1.4.7
> released today; but in the svn trunk).
> 
> Best regards,
>    Wouter
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