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Date:      Wed, 07 Jun 2000 00:16:50 -0700
From:      "Raymundo M. Vega" <RaymundoVega@home.com>
To:        webmaster@wmptl.com
Cc:        Neil Blakey-Milner <nbm@mithrandr.moria.org>, questions@FreeBSD.ORG
Subject:   Re: IP vs CNAME
Message-ID:  <393DF6E2.322B070F@home.com>
References:  <FCEELIAEIIECDGKKJLMIMECHCAAA.troy@picus.com> <4.3.1.2.20000604022838.0195f9b8@mail.enterit.com> <393D16E4.D2E76C9A@wmptl.com> <20000606172900.A15502@mithrandr.moria.org> <393D1A1C.D3C35785@wmptl.com>

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Nathan Vidican wrote:
> 
> Neil Blakey-Milner wrote:
> >
> > Responding to Jim:
> >
> > On Tue 2000-06-06 (11:21), Nathan Vidican wrote:
> > > Jim Conner wrote:
> > > > > > @       IN      SOA     ns1.isp.net. hostmaster.isp.net. (
> > > > > >               2000060401  10800  3600  3600000  86400 )
> > > > > >         IN    MX  10   mailhost.isp.net.
> > > > > >         IN    MX  20   spooler.isp.net.
> > > > > >         IN    NS       ns1.isp.net.
> > > > > >         IN    NS       ns2.isp.net.
> > > > > > @       IN    CNAME    webhost.isp.net.
> >
> > ^^^^
> >
> > > > > > www     IN    CNAME    webhost.isp.net.
> > > > > > mail    IN    CNAME    mailhost.isp.net.
> > > >
> > > > He's right.  This zone file as-is won't work.  You have no A names
> > > > here!!  Also, it appears you are using version 4.x syntax.  This zone file
> > > > would never do for a current version of bind.
> >

> 
> No, you don't have to have any A records in a zonefile. In fact, you
> don't even have to have the zonefile for where the CNAME points to; your
> CNAME could point to a domain controlled by a different DNS server if
> you so wished it.

It has nothing to do with domains, yes you can point it to
a *host* in a different domain, but not to a whole domain.

Just read RFC1912, this is a good guide on common DNS mistakes.

raymundo.


> 
> --
> Nathan Vidican
> webmaster@wmptl.com
> Windsor Match Plate & Tool Ltd.
> http://www.wmptl.com/
>


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