Re: [DNSOP] port 0 requests leading to errors

Paul Vixie <paul@redbarn.org> Sat, 22 March 2014 17:23 UTC

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Date: Sat, 22 Mar 2014 10:23:51 -0700
From: Paul Vixie <paul@redbarn.org>
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To: bert hubert <bert.hubert@netherlabs.nl>
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Subject: Re: [DNSOP] port 0 requests leading to errors
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bert hubert wrote:
> ...
>
> 43.504115 IP x.y.117.10.0 > 192.175.48.6.53: 6365+ SOA? 168.192.in-addr.arpa. (38)
> 45.504152 IP x.y.117.10.0 > 192.175.48.6.53: 6365+ SOA? 168.192.in-addr.arpa. (38)
> 49.505124 IP x.y.117.10.0 > 192.175.48.6.53: 6365+ SOA? 168.192.in-addr.arpa. (38)
>
> PowerDNS now refuses to attempt to answer such packets, which silences the
> error messages.

mark andrews sent me a similar patch to bind 4.9 back in 1992, which
made no sense to me but i put it in anyway. thanks for explaining.