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Date:      Fri, 11 Jul 2008 16:38:50 -0400
From:      Alan Clegg <alan@clegg.com>
Cc:        "freebsd-security@freebsd.org" <freebsd-security@freebsd.org>
Subject:   Re: [Fwd: cvs commit: ports/dns/bind9 Makefile distinfo	ports/dns/bind94 Makefile distinfo ports/dns/bind95 Makefile	distinfo]
Message-ID:  <4877C4DA.9070404@clegg.com>
In-Reply-To: <48778A1B.4060504@infracaninophile.co.uk>
References:  <C49A67C5.1A0CBA%astorms@ncircle.com>	<20080709204114.471A2F1835D@mx.npubs.com>	<4876A3FE.1070407@FreeBSD.org>	<200807111454.IAA18639@lariat.net>	<20080711151228.GA52385@eos.sc1.parodius.com> <487782C5.7050703@clegg.com> <48778A1B.4060504@infracaninophile.co.uk>

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Matthew Seaman wrote:

> Probably what Brett is looking for are the avoid-v4-udp-ports  and
> avoid-v6-udp-ports options -- these just contain lists of UDP ports
> to avoid as the source of any DNS traffic.  Details are available here
> (for bind95) http://www.isc.org/sw/bind/arm95/Bv9ARM.ch06.html#options
> but it's the same for all 9.x versions of BIND.

This is fine as long as you are not defining large numbers of "don't
touch" ports.

The added functionality of 9.5.1b1:

  use-v4-udp-ports { range 1024 65535; };
  use-v6-udp-ports { range 1024 65535; };

Is what I was pointing people towards.

AlanC
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