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Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!uupsi!sunic!news.funet.fi!kannel!Kimmo.Suominen
From: Kimmo.Suominen@lut.fi (Kimmo Suominen)
Newsgroups: comp.mail.sendmail,comp.protocols.tcp-ip.domains
Subject: Creating a domain alias
Message-ID: <KIMMO.SUOMINEN.91Mar24234231@kannel.lut.fi>
Date: 24 Mar 91 22:42:31 GMT
References: <1461@lehi3b15.csee.Lehigh.EDU>
	<1991Mar23.235415.15732@borland.com>
Sender: kim@lut.fi (Kimmo Suominen)
Followup-To: comp.protocols.tcp-ip.domains
Distribution: comp
Organization: Lappeenranta University of Technology, Finland
Lines: 39
In-Reply-To: sidney@borland.com's message of 23 Mar 91 23:54:15 GMT
Disclaimer: These are my opinions unless otherwise stated

[ I am moving this conversation to comp.protocols.tcp-ip.domains,
  where it belongs better, IMHO ]

>>>>> On 23 Mar 91 23:54:15 GMT, sidney@borland.com (Sidney Markowitz) said:

Sidney> The simplest way is to add an A record that defines the domain name as
Sidney> a host with the same IP address as the mail host. Here's what it looks

Sidney> $ORIGIN borland.com.
Sidney> @		IN	NS	frank.borland.com.
Sidney> frank		IN	A	131.119.250.105
Sidney> $ORIGIN com.
Sidney> borland		IN	A	131.119.250.105

Now, IS THIS CORRECT?

Is it really correct to have two names pointing to the same address.
The way I see it, one of these names should be a CNAME entry.  And
because a domain cannot be a CNAME, then the name "frank" should be a
CNAME ponting to borland.com.  Like this

	$ORIGIN borland.com.
	@	IN	NS	@
		IN	A	131.119.250.105
	frank	IN	CNAME	@

Of course this means, that the canonical name for the host is then
borland.com, not frank.borland.com.  But I can't see, what the
canonical name is in the original case...

Please, comment on this and let me know, what the right way is.  I
think this has been discussed before, and I think, that the way I
described is the correct one.  Am I right?  Or am I right? ;-)

P.S.  I am not trying to offend anyone.  I have just run into this
problem many times lately.
--
Kim                      /  Internet: Kimmo.Suominen@lut.fi
"That's what I think."  /   Bitnet:   KIM@FINFILES