Date: Thu, 31 May 2007 18:03:58 -0400 From: Chuck Swiger <cswiger@mac.com> To: Rob <r17fbsd@xxiii.com> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: Help with Bind config syntax for reverse DNS on subnet Message-ID: <465F464E.2060503@mac.com> In-Reply-To: <465F33B3.7090301@xxiii.com> References: <465F33B3.7090301@xxiii.com>
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Rob wrote:
> Hi, was hoping someone could help me with the correct syntax in my
> named.conf for reverse DNS on a small subnet.
>
> Say I have 10.0.0.0/27, such that actual addresses are 10.0.0.0 through
> 10.0.0.31 -- If I add a zone like:
> zone "0.0.10.in-addr.arpa" {
> type master;
> file "master/0.0.10.in-addr.arpa"; };
>
> ...I can define addresses for my little block, but reverse lookups on
> the rest of 10.0.0.x seem to fail. What's the correct way to configure
> Bind for this?
That's known as "Classless IN-ADDR.ARPA delegation", and is documented here:
http://www.ietf.org/rfc/rfc2317.txt
--
-Chuck
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