Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!cs.utexas.edu!uunet!ncis.tis.llnl.gov!INRIA.INRIA.FR!dupont
From: dupont@INRIA.INRIA.FR (Francis Dupont)
Newsgroups: comp.protocols.iso.x400.gateway
Subject: Re: Fw: draft RFC on X.400 to Internet addressing
Message-ID: <1372@inria.inria.fr>
Date: 18 Jul 89 18:28:22 GMT
Sender: root@ncis.tis.llnl.gov
Distribution: inet
Organization: The Internet
Lines: 24
Approved: post-x400-gateway@tis.llnl.gov


In the draft RFC on X.400 to Internet addressing, Robert Ullmann said :

> Within the internet, the X.400 ADMDs should have MX records in the
> domain system [5, 6] specifying the gateway(s) for the particular ADMD.
> ATLAS.FR, for example, is already registered in this way.
  ^^^^^^^^

But it is not a good example !
ATLAS is definitively NOT a sub-domain of FR in the DNS.
ATLAS 400 is only a RPOA, and is not aware of such a thing like the Internet.
I believe Robert Ullmann has done this mistake because there is a MX RR
for *.fr in order to catch miscellaneous sub-domains (in general UUCP sites
with a domain name (see note)).
I think that the idea to give a MX RR to ATLAS.FR is an error.
For example, nobody'd like to have names like pucc.princeton.nsf.us because
Princeton University uses the network organization NSF ...

Francis.Dupont@inria.fr [INRIA DNS wizard]

Note : today there are 40 sub-domains of .FR, and only 25 of them could be
reached directly (or will be accessible) from the Internet.
Several UUCP sites have got a domain name, much preferable than old UUCP
paths. X.400 has one (only) good thing : it uses no routes (yet).