Path: utzoo!mnetor!uunet!husc6!rutgers!super.upenn.edu!linc.cis.upenn.edu!brant
From: brant@linc.cis.upenn.edu (Brant Cheikes)
Newsgroups: comp.mail.uucp
Subject: Re: Duplicate site names
Message-ID: <2938@super.upenn.edu>
Date: 5 Jan 88 18:57:48 GMT
References: <271@ontenv.UUCP> <7905@g.ms.uky.edu> <44208@beno.seismo.CSS.GOV> <22341@hi.unm.edu> <446@minya.UUCP>
Sender: news@super.upenn.edu
Reply-To: brant@linc.cis.upenn.edu (Brant Cheikes)
Organization: University of Pennsylvania
Lines: 27
Keywords: pathalias maps duplicates

In article <446@minya.UUCP> jc@minya.UUCP (John Chambers) writes:
>> >Yeah, and it'll get a lot worse before it gets better.
>...
>> NO, you get yourself a domain name (registered, of course).
>
>Sorry, but you haven't been listening to the complaints from the users of
>the various "tut" machines [...]
>
>The basic scenario is that someone at Fubar University has their tut.edu 
>down the line from fu.edu; I send them mail to ...!fu.edu!tut.edu!jrh;
>the mailer at ... realizes there's a faster route to tut.edu than via
>fu.edu and mails it to tut.edu over in Finland.

I believe you misunderstand the domain system.  The proper domain for Fubar
U would be something like "fubar.edu".  A site "tut" within the Fubar
domain is properly addressed as "tut.fubar.edu".  You address your mail
to ...!tut.fubar.edu!user.  The smart mailers forward mail addressed to
<subdomain>.fubar.edu!user to fubar.edu's gateway machine, say
bletch.fubar.edu, so mail to tut ends up being addressed as
...!bletch.fubar.edu!tut.fubar.edu!user.  Since fully-qualified
domain names are unique, there should never be a problem such as you
describe.
---
Brant Cheikes
University of Pennsylvania
Department of Computer and Information Science
ARPA: brant@linc.cis.upenn.edu, UUCP: ...drexel!manta!brant