Date: Thu, 18 Mar 1999 09:23:06 -0800 (PST) From: Dan Busarow <dan@dpcsys.com> To: Brett Glass <brett@lariat.org> Cc: questions@FreeBSD.ORG Subject: Re: Oddity in name resolution Message-ID: <Pine.BSF.3.96.990318091851.14678A-100000@java.dpcsys.com> In-Reply-To: <4.1.19990317220420.03f15d50@localhost>
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On Wed, 17 Mar 1999, Brett Glass wrote:
> A FreeBSD system here in the lab is having trouble resolving host names
> with underscores in them. Yes, I know, they're really not SUPPOSED to have
> underscores in them, but many do. For example, the mail exchanger for The
> Computer Museum in Boston is museum_alpha.tcm.org. They have no secondary
> MX, so mail sent to anyone there just bounces. We may also be missing
> INCOMING mail from them, since the mailer may reject mail from any host
> whose name it can't resolve.
With bind8 you can control this, someone may have tightened it
up as the default allows these names through.
See named.conf options { check-names }
The defaults are
check-names master fail;
check-names slave warn;
check-names response ignore;
which will not allow *you* to have bad names in a zone you are
primary for, will complain about bad names in a domain you are
secondary for and allow bad names when querying other zones.
Dan
--
Dan Busarow 949 443 4172
Dana Point Communications, Inc. dan@dpcsys.com
Dana Point, California 83 09 EF 59 E0 11 89 B4 8D 09 DB FD E1 DD 0C 82
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