Re: [DNSOP] I-D Action: draft-ietf-dnsop-alt-tld-13.txt

Tony Finch <dot@dotat.at> Fri, 25 June 2021 21:12 UTC

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Date: Fri, 25 Jun 2021 22:12:43 +0100
From: Tony Finch <dot@dotat.at>
To: John Levine <johnl@taugh.com>
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Subject: Re: [DNSOP] I-D Action: draft-ietf-dnsop-alt-tld-13.txt
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John Levine <johnl@taugh.com> wrote:
>
> I'd also like it to say more clearly up front that .ALT is for names
> that are totally outside the DNS protocols, not for names handled
> locally using DNS protocols. It's for things like .onion, not like
> .local.

.local is a tricky example because it is used for mDNS (as discussed in
the other replies) but it also has a history of being used as an ad-hoc
RFC 1918-style domain. Microsoft recommended .local for use in Active
Directory domain names for their Small Business Server, back in the days
when you couldn't reasonably expect their target customers to register a
real domain name. There are ugly hacks in mDNS implementations such as
Avahi that try to work out what a network connection uses .local for.

Tony.
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