Hi,

I guess one could use pf's divert-to and dnsfilter.

http://marc.info/?l=openbsd-misc&m=134187877220567&w=2

Regards,
Pedro Caetano

On Mon, Nov 9, 2015 at 9:45 PM, sven falempin <sven.falem...@gmail.com>
wrote:

> For the first time ever i did something with iptable
> that i dont know how to do (simply) with
> pf.
> Something i think it is usefull.
>
> I have a domain server, nsd, it serves whatever.com,
> the server is like flooded with request for no reason,
>
> with iptables i was able to add
> <-m string --hex-string whatever|03|com>
> in the <in> rules.
>
> So i only accept DNS request that matters to me.
>
> Is there a way ? (something simpler than diverting to a
> sort of grep -v ).
>
> Would it be a cool feature ? or because it s a protocol shall
> it be done inside relayd ?
>
> Best regards.
>
> --
>
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