[Pdns-users] Occasional TCP query timeouts.

Timo Witte timo.witte at googlemail.com
Wed Oct 5 23:46:47 UTC 2011

i think this is some sort oft TCP Problem,
the server is replying on the old port of a already closed connection,
the client then sends a RST paket, because packets on a closed 
connection are not correct!
Did you change tcp_tw_reuse or tcp_tw_recycle to 1 in the linux kernel?
Make sure you set both to 0! They will cause a lot of problems like this 
one especially with devices behind NAT!

Timo Witte

Am 06.10.2011 01:28, schrieb Grant Keller:
> Truncated pcap attached. About halfway through the file you will see
> some tcp resets. This is where the problem is occurring.
> On 10/05/2011 08:10 AM, Peter van Dijk wrote:
>> Hello Grant,
>> I was hoping for a somewhat smaller capture. Hints about where in this
>> capture the issue occurs are welcome :)
>> Kind regards,
>> Peter van Dijk
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