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From: fair@ucbvax.ARPA (Erik E. Fair)
Newsgroups: net.mail
Subject: Re: Standardising the "postmaster" concept
Message-ID: <10305@ucbvax.ARPA>
Date: Sun, 8-Sep-85 09:47:35 EDT
Article-I.D.: ucbvax.10305
Posted: Sun Sep  8 09:47:35 1985
Date-Received: Mon, 9-Sep-85 04:43:05 EDT
References: <426@mungunni.OZ> <10298@ucbvax.ARPA> <2767@sun.uucp>
Organization: University of California at Berkeley
Lines: 16

I did once write a sendmail.cf at DUAL to hide the internal network,
and had aliases for each user on the network on the main machine.
Once I finished, I was freed from any constraints or worries about the
names of the machines on the internal network. Also, since these
aliases existed on all the machines, all I had to remember to mail a
note to someone was their username. I didn't have to remember which
machine they happened to be reading their mail on this week...

The big difference between DUAL and SUN is that DUAL had only 6
machines on the internal ethernet, which made the administrative
problem tractable by manual procedures. SUN has hundreds of machines on
their multiple ethernets, and thus the mechanics of maintaining such a
table of aliases becomes a lot messier. It is at that scale that some
type of name service becomes important to implement.

	Erik E. Fair	ucbvax!fair	fair@ucbarpa.BERKELEY.EDU