valid chars in host names

David Borman <dab@berserkly.cray.com> Mon, 22 November 1993 22:55 UTC

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Date: Mon, 22 Nov 1993 16:48:53 -0600
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From: David Borman <dab@berserkly.cray.com>
Message-Id: <9311222248.AA03866@berserkly.cray.com>
To: ietf-hosts@isi.edu
Subject: valid chars in host names

According to RFC-1123/RFC-952, the only valid characters in a
host name are alpha-numerics and a hyphen.  Has anything relaxed
those rules since then to allow other characters (like and
underscore)?
			-David Borman, dab@cray.com