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Re: [DNSOP] opportunistic refresh and Happy Eyeballs

Petr Špaček <petr.spacek@nic.cz> Thu, 17 August 2017 13:41 UTC

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From: Petr Špaček <petr.spacek@nic.cz>
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Date: Thu, 17 Aug 2017 15:41:04 +0200
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Subject: Re: [DNSOP] opportunistic refresh and Happy Eyeballs
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On 16.8.2017 23:59, Warren Kumari wrote:
> On Wed, Aug 16, 2017 at 4:05 AM, Ralf Weber <dns@fl1ger.de> wrote:
>> Moin!
>>
>> On 16 Aug 2017, at 2:44, Warren Kumari wrote:
>>>> If it's a commonly-used name, I suspect the more straightforward
>>>> "prefetching" should suffice in practice:
>>>> https://datatracker.ietf.org/doc/draft-wkumari-dnsop-hammer/
>>>> Several popular recursive servers already implement the feature.
>>>> Some of them even enable it by default.
>>>>
>>>
>>> One of the main outstanding items on the "Stop! Hammer Time!" document
>>> that we need to clean up the implementation section (Appendix A), but
>>> it does note that at least Unbound (NLNet Labs), OpenDNS, and ISC BIND
>>> 9.10 implement this.
>> From how I read the document and understand the implementations none of
>> those implements the actual draft, but instead they have implementations
>> that do some sort of prefetching. If that is the case you can add Nominum
>> Cacheserve to the list,

BTW you can count Knot Resolver in as well.

-- 
Petr Špaček  @  CZ.NIC

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