Re: [DNSOP] [Doh] New I-D: draft-reid-doh-operator

Eliot Lear <lear@cisco.com> Tue, 19 March 2019 13:13 UTC

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From: Eliot Lear <lear@cisco.com>
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Date: Tue, 19 Mar 2019 14:13:26 +0100
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Cc: DoH WG <doh@ietf.org>, dnsop <dnsop@ietf.org>
To: Ted Lemon <mellon@fugue.com>
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Subject: Re: [DNSOP] [Doh] New I-D: draft-reid-doh-operator
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> On 19 Mar 2019, at 14:10, Ted Lemon <mellon@fugue.com>; wrote:
> 
> On Mar 19, 2019, at 3:50 AM, Eliot Lear <lear@cisco.com <mailto:lear@cisco.com>> wrote:
>> It might also be possible to whitelist ANSWERs into iptables. I wrote the code for that for a dnscap plugin some years ago, and you could even play with it if you want (it’s on GitHub), but I’m not suggesting it’s a good general answer (it was intended for a very specific use case involving relatively few domains for (hopefully cooperating) IoT devices).  As you point out, it won’t tackle shared IP addresses, and quite frankly, little CPE gear won’t scale with a gazillion iptables entries (I’m not sure big gear would either).
> 
> Link?
> 


Sure.  It’s my branch off of dnscap.  https://github.com/elear/dnscap <https://github.com/elear/dnscap>;.  See plugins/aclm.  Limited doc is available, but anyone who wants to play just let me know.

Eliot