Maintained by: NLnet Labs

[Unbound-users] No answers from unbound occasionally

Attila Nagy
Sat May 30 14:28:38 CEST 2009


Attila Nagy wrote:
> W.C.A. Wijngaards wrote:
>> Are those replies from authority servers? That arrive just after unbound
>> times out and closes the socket?
>>   
> I'm not sure I understand this correctly. What we do is the following:
During trying to figuring out why does the "dropped due to no socket" 
counter grows, I turned on net.inet.udp.log_in_vain, which logs what 
connections couldn't find a socket.
And I quickly understood the above. :)
Yes, they are the answers from authoritative servers.

I don't know how long unbound waits for an answer, but I see about 10-30 
lines per second per server from this. Do you think it's normal? (there 
are about 4k qps currently)

May 30 14:25:21 ns Connection attempt to UDP m.y.i.p:42849 from 
193.230.161.4:53
May 30 14:25:21 ns Connection attempt to UDP m.y.i.p:29188 from 
202.103.224.70:53
May 30 14:25:21 ns Connection attempt to UDP m.y.i.p:6351 from 
202.67.10.90:53
May 30 14:25:21 ns Connection attempt to UDP m.y.i.p:10611 from 
202.67.10.90:53

Thanks,