Here we go with a thread on the set of Domain Names being a superset of host names again. ;)
On 8/14/18, 09:09, "DNSOP on behalf of Tony Finch" <dnsop-bounces@xxxxxxxx on behalf of dot@xxxxxxxx> wrote:
Viktor Dukhovni <ietf-dane@xxxxxxxxxxxx> wrote:
>
> Indeed in a non-public network, I'm free to provision a
> ".1" TLD, and even create hosts as sub-domains of this name:
This would break a (non-normative) promise in RFC 1123
However, a valid host name can never
have the dotted-decimal form #.#.#.#, since at least the
highest-level component label will be alphabetic.
Tony.
--
f.anthony.n.finch <dot@xxxxxxxx> https://urldefense.proofpoint.com/v2/url?u=http-3A__dotat.at_&d=DwICAg&c=FmY1u3PJp6wrcrwll3mSVzgfkbPSS6sJms7xcl4I5cM&r=9G8-4P__AMgxNOQPiu7FkrImeieALKYtfGBE8UTuyg4&m=QjsPxg2u_w5HwqTk95P5eTu9RA87DRX8Va9nquK7g2I&s=NPniHZyF7bhbM8JRfkvKZTPrUgRkCZqoRFFeyAJKpe0&e=
North Utsire, South Utsire: Variable, becoming southerly 3 or 4, occasionally
5 later. Smooth or slight. Rain later. Good, occasionally poor later.
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