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How can I pick a domain name?

daemon@ATHENA.MIT.EDU (Ed Osinski)
Tue Nov 26 19:43:35 1996

From: osinski@valis.cs.nyu.edu (Ed Osinski)
To: redhat-list@redhat.com
Date: Tue, 26 Nov 1996 19:42:34 -0500 (EST)
Resent-From: redhat-list@redhat.com
Reply-To: redhat-list@redhat.com

I have managed to install RedHat 4.0 and install PPP networking.  I've
read all the networking related HOWTOs, and the Network Administrator's
Guide, but I can't find the answer to a simple question: 

	What can I use as a valid FQDN?

I have a standalone machine; the only connection to the Internet is via
the PPP link; my ISP uses dynamic IP addressing.  The unqualified
hostname is entirely up to me, but what is my DNS domain name?  Can I
pick anything I like?  (I assume not.)  How many dots need to be in the
name?  The docs seem to be no help; for example, the NAG says:

	"Your domain name is your fully qualified hostname (if you're a
        registered machine on the Internet, for example), with the
	hostname chopped off."

That's nice, but my machine *isn't* a registered machine on the
Internet (unless someone registered it while I wasn't looking).  I
assume that many, if not most, Linux machines are in a similar
predicament.  Did I miss something in the docs? 

Hoping someone knows...

- Ed Osinski


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