Maintained by: NLnet Labs

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

W.C.A. Wijngaards
Mon Nov 8 19:35:09 CET 2010


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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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