[Unbound-users] Timeouts

W.C.A. Wijngaards wouter at NLnetLabs.nl
Tue Jun 22 10:15:32 UTC 2010


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Hi Carl,

What is odd is that they have port 0.  Unbound would create structures
with port 53 inside it.  Are these servers configured from the config file?

Possibly these are returns to the original sender, in which case those
machines send queries from port 0 (which is very odd).  And when trying
to return the answer unbound gets EINVAL from sendto().  The operating
system does not like port 0?

Best regards,
   Wouter

On 06/16/2010 12:56 AM, Carl Lantz wrote:
> Hello,
> I am getting the following errors in my log files and was wondering if
> anyone had any ideas on what the problem might be. I have the exact
> setup on another server and do not get these errors. The ip's in the log
> files are servers that just timeout.
> 
> 
> 
> [1276641005] unbound[1015:1] notice: sendto failed: Invalid argument
> [1276641005] unbound[1015:1] notice: remote address is 44.44.44.2 port 0
> [1276641006] unbound[1015:f] notice: sendto failed: Invalid argument
> [1276641006] unbound[1015:f] notice: remote address is 44.77.34.2 port 0
> [1276641015] unbound[1015:b] notice: sendto failed: Invalid argument
> [1276641015] unbound[1015:b] notice: remote address is 44.52.183.98 port 0
> [1276641022] unbound[1015:f] notice: sendto failed: Invalid argument
> [1276641022] unbound[1015:f] notice: remote address is 44.52.183.98 port 0
> [1276641024] unbound[1015:c] notice: sendto failed: Invalid argument
> [1276641024] unbound[1015:c] notice: remote address is 124.122.37.66 port 0
> [1276641027] unbound[1015:2] notice: sendto failed: Invalid argument
> [1276641027] unbound[1015:2] notice: remote address is 44.53.123.48 port 0
> 
> server:
>         verbosity: 1
>         num-threads: 16
>         msg-cache-slabs: 16
>         rrset-cache-slabs: 16
>         infra-cache-slabs: 16
>         key-cache-slabs: 16
>         rrset-cache-size: 750m
>         msg-cache-size: 400m
>         so-rcvbuf: 8m
>         interface: 0.0.0.0
>         interface: ::0
>         access-control: 0.0.0.0/0 <http://0.0.0.0/0> allow
>         access-control: 127.0.0.0/8 <http://127.0.0.0/8> allow
>         chroot: ""
>         username: ""
>         outgoing-range: 64535
>         num-queries-per-thread: 2400
>         logfile: "/var/log/unbound.log"
> remote-control:
>         control-enable: no
> 
> 
> Any help would be appreciative.
> 
> Thanks,
> Carl
> 
> 
> 
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