[comp.mail.uucp] Why use a domain?

lear@NET.BIO.NET (Eliot Lear) (10/06/88)

Essentially, Jordan is right, although I wish he would be a little
more verbose in his answers.  In a perfect world, the domain system
would handle all hosts without .UUCP.  That is a goal for which we
should work.

There are essentially three benefits of using real domains over .UUCP:

1]  Beyond the name, you gain some additional piece of information.
    Right now, that information either indicates structural
    organization such as educational, military, etc., or a location
    such as asylum.sf.ca.us.  I am told that it is a bad idea to
    expect any *real* information in that name, but never-the-less...

2]  It increases the name space.  There can only be one foo.UUCP, but
    there can be a foo.rutgers.edu and a foo.berkeley.edu, etc.

3]  Most importantly, it is accepted that domain names are absolute,
    unlike UUCP, where some circles still argue the point.
-- 
Eliot Lear
[lear@net.bio.net]

moore@utkcs2.cs.utk.edu (Keith Moore) (10/07/88)

In article <Oct.5.23.13.39.1988.12866@NET.BIO.NET> lear@NET.BIO.NET (Eliot Lear) writes:
>There are essentially three benefits of using real domains over .UUCP:
>
>1]  Beyond the name, you gain some additional piece of information.
[...]
>2]  It increases the name space.  There can only be one foo.UUCP, but
>    there can be a foo.rutgers.edu and a foo.berkeley.edu, etc.
>
>3]  Most importantly, it is accepted that domain names are absolute,
>    unlike UUCP, where some circles still argue the point.

You are forgetting perhaps the most important advantages of using domain names.
If you establish a domain name for your system, many more systems will be able
to send mail to your system.  This is because domain names are more likely 
than routing paths to survive translation from the address format of one
mail system to another.  Furthermore, if your system has a domain name, very
few machines need to know any explicit routing information for your machine.
Finally, domain names are our best shot at reconciling the differences between
the many addressing schemes of the various mail systems in use.
-- 
Keith Moore
UT Computer Science Dept.	Internet/CSnet: moore@utkcs2.cs.utk.edu
107 Ayres Hall, UT Campus	BITNET: moore@utkcs1
Knoxville Tennessee 37996-1301	Telephone: +1 615 974 0822

chip@ateng.ateng.com (Chip Salzenberg) (10/07/88)

Yet again, optimism rears its ugly head.

According to lear@NET.BIO.NET (Eliot Lear):
>In a perfect world, the domain system would handle all hosts
>without .UUCP.  That is a goal for which we should work.

Enough of the "perfect world" stuff.  The published maps will never be
accurate.  Let's stop kidding ourselves, hm?

>There are essentially three benefits of using real domains over .UUCP:
>1]  Beyond the name, you gain some additional piece of information.
>2]  It increases the name space.
>3]  Most importantly, it is accepted that domain names are absolute...

4]  Domains allow sites to change configurations without requiring changes
    to any *published* maps.
-- 
Chip Salzenberg             <chip@ateng.com> or <uunet!ateng!chip>
A T Engineering             Me?  Speak for my company?  Surely you jest!
	   Beware of programmers carrying screwdrivers.