[Pdns-users] TCP Query Problem

[Florian Weimer]

* InterNetworX:

> it looks like that this helps:
>
> echo 1 >/proc/sys/net/ipv4/tcp_syncookies
>
> Thanks for the netstat hint.

Not really, it's consistent with PowerDNS only accept()ing a single
connection.

The next step probably is looking at "strace -f -p SERVER-PID" output
(or what your local truss/strace equivalent is called), although the
interesting messages will probably be lost in the noise caused by
processing UDP queries.

-- 
Florian Weimer                <fweimer at bfk.de>
BFK edv-consulting GmbH       http://www.bfk.de/
Kriegsstraße 100              tel: +49-721-96201-1
D-76133 Karlsruhe             fax: +49-721-96201-99