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Date:      Sat, 6 Jan 2001 14:06:46 -0500 (EST)
From:      Mitch Collinsworth <>
To:        Peter Brezny <>
Cc:        freebsd-net@FreeBSD.ORG
Subject:   Re: general question re: PTR records.
Message-ID:  <>
In-Reply-To: <000101c0781d$9b4a5ae0$>

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On Sat, 6 Jan 2001, Peter Brezny wrote:

> Why are PTR records placed in zone db files separate from all other resource
> records?
Because they're not in the same zone.

> For small domains, wouldn't it be simpler to just have your reverse ip to
> name mappings in the same zone db file as your forward name to ip mappings?
No.  There's not necessarily a one-to-one mapping.  Consider the case
of a web server that servers hundreds of domain names for example.

> Something like
>	IN	A	x.y.z.q
> ...
Notice that belongs to the com. zone, while
belongs to the zone.

> I realize the advantage of having one big reverse zone db file for your
> subnet as far as the amount of raw data entry is required, but for a small
> host it seems a little more straight forward to put everything for a domain
> in one db file.  I've read through all of ch4 in dns & bind, and haven't
> come across anything that says you couldn't do it this way...

You can't do it.

> Will named accept this?

> Is it just a really bad idea?
It's an interesting idea, but it assumes a picture of the world that
doesn't correspond with actual reality.


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