Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10 5/3/83; site cbosgd.UUCP
Path: utzoo!linus!philabs!cbosgd!mark
From: mark@cbosgd.UUCP (Mark Horton)
Newsgroups: net.announce
Subject: is your site name unique in the first 6 characters?
Message-ID: <833@cbosgd.UUCP>
Date: Sat, 14-Jan-84 16:30:23 EST
Article-I.D.: cbosgd.833
Posted: Sat Jan 14 16:30:23 1984
Date-Received: Sun, 15-Jan-84 02:47:15 EST
Organization: AT&T Bell Laboratories, Columbus
Lines: 31
Approved: mark@cbosgd.UUCP
To: cbosgd!mark

A little known fact (I just found this out for myself recently) is that
the System V version of UUCP only looks at the first 6 characters of the
host name.  (All previous versions looked at the first 7 characters.)
I won't attempt to defend this change, but must point out that System V
is a widely used system and a de-facto standard.  As a result of this,
when the UUCP name registry gets going, it will have to require that
all names be unique in the first 6 characters.

Here is a list of site names from the Usenet directory that are not
unique in the first 6 characters.  I suspect that there are many more
UUCP sites, not belong to Usenet, with the same problem.  I urge these
sites to consider renaming themselves with names unique in the first
6 characters.

I'm sorry this is necessary.  Personally, I think 7 characters is too
short.  There are versions of UUCP in the works that will use the first
7 (at least) once again, but there will no doubt be many machines running
the 6 character System V UUCP for many years to come.

	Mark Horton

count	6 char prefix
   2	bunker
   3	dadla-
   2	datage
   3	hplabs
   2	intelo
   5	kunivv
   2	logica
   2	sdcatt
   2	unidoi