Odd hostname problem

Mark_Andrews at isc.org Mark_Andrews at isc.org
Tue Jun 18 23:08:15 UTC 2002

> I'm trying to add some DNS entries for one of our customers onto our DNS
> server (a Cobal RaQ2) via the web interface.  Our customer wants their
> hostnames to be of the format aaa-bbb-ccc-ddd.doman.com, where
> aaa-bbb-ccc-ddd is the IP address of the host.  The web interface keeps
> telling me that this isn't a valid hostname, although I thought hypens and
> numbers are vaild characters for DNS names.  Is this format valid, or do I
> have to go and tell our customer that he's going to have to choose some
> other hostnames?

	Yes it is valid, see RFC 1123 which lifted the restriction on leading
	digits.  There is no way aaa-bbb-ccc-ddd can be confused with a IP
	address even though it encodes a IP address.

> Cheers,
> Steve
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at isc.org

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