Re: [DNSOP] [Ext] Re: draft-ietf-dnsop-refuse-any - why not NOTIMP?

Edward Lewis <edward.lewis@icann.org> Mon, 07 August 2017 16:14 UTC

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From: Edward Lewis <edward.lewis@icann.org>
To: Ray Bellis <ray@bellis.me.uk>, =?utf-8?B?w5NsYWZ1ciBHdcOwbXVuZHNzb24=?= <olafur@cloudflare.com>
CC: dnsop <dnsop@ietf.org>
Thread-Topic: [Ext] Re: [DNSOP] draft-ietf-dnsop-refuse-any - why not NOTIMP?
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Date: Mon, 7 Aug 2017 16:14:11 +0000
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Subject: Re: [DNSOP] [Ext] Re: draft-ietf-dnsop-refuse-any - why not NOTIMP?
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On 8/7/17, 11:45, "DNSOP on behalf of Ray Bellis" <dnsop-bounces@ietf.org on behalf of ray@bellis.me.uk> wrote:

>    On 07/08/2017 16:44, Ólafur Guðmundsson wrote:
>    
>    > This was the original proposal, 
>    > the drawback is that resolvers to not cache the answer, and to make
>    > things worse they ask ALL NS addresses for listed domain 
>    > thus it acts as a DDoS against the domain in question.  
>    
>    Indeed - I've since confirmed that BIND does this.
>  
>    I think my point still stands that this behaviour should be documented
>    in the section that talks about a possible new RCODE and why that option
>    was rejected.

This thread is why I'd like to return "what the querier should do next" instead of "why I didn't answer". ;)