Re: [DNSOP] Fwd: New Version Notification for draft-sury-deprecate-obsolete-resource-records-00.txt

Paul Vixie <paul@redbarn.org> Mon, 26 March 2018 15:28 UTC

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Date: Mon, 26 Mar 2018 08:28:11 -0700
From: Paul Vixie <paul@redbarn.org>
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Subject: Re: [DNSOP] Fwd: New Version Notification for draft-sury-deprecate-obsolete-resource-records-00.txt
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Ondřej Surý wrote:
> ...
> But it’s funny that we should not remove a record while this was
> already written in 1989:

>        An application SHOULD NOT rely on the ability to locate a WKS
>        record containing an accurate listing of all services at a
>        particular host address, since the WKS RR type is not often used
>        by Internet sites.  To confirm that a service is present, simply
>        attempt to use it.
>

> While the special processing was added to RFC 2136 (9 years later)
> isreally beyond my understanding :(.

host requirements was not a DNS document. it removed nothing from the 
DNS. rather, it removed the burden on service responders to list their 
service in WKS, by telling service initiators not to look for it.

-- 
P Vixie