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Re: [DNSOP] Future of "Using DNAME in the DNS root zone for sinking of special-use TLDs" ?

"John R Levine" <johnl@taugh.com> Wed, 19 October 2016 22:27 UTC

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Date: Wed, 19 Oct 2016 18:28:10 -0400
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From: John R Levine <johnl@taugh.com>
To: Mark Andrews <marka@isc.org>
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Cc: dnsop@ietf.org
Subject: Re: [DNSOP] Future of "Using DNAME in the DNS root zone for sinking of special-use TLDs" ?
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>> So a cache stub that provides unsigned answers to .local and .onion
>> queries is just fine.  If the client treats that as SERVFAIL or
>> whatever it does with unverified answers, that's fine too.
>
> SERVFAIL is a temporary error.
> NXDOMAIN is a permanent error which is cachable.
>
> SERVFAIL is not "fine".

Hmmn.  Keeping in mind that these responses are sent by the cache, could 
you explain what "cacheable" means in this context?

Regards,
John Levine, johnl@taugh.com, Taughannock Networks, Trumansburg NY
Please consider the environment before reading this e-mail. https://jl.ly

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