Re: [dns-privacy] Draft on the use of multiple recursive resolvers
Vladimír Čunát <vladimir.cunat+ietf@nic.cz> Mon, 18 November 2019 13:32 UTC
Return-Path: <vladimir.cunat+ietf@nic.cz>
X-Original-To: dns-privacy@ietfa.amsl.com
Delivered-To: dns-privacy@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 9814012084B for <dns-privacy@ietfa.amsl.com>; Mon, 18 Nov 2019 05:32:17 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -6.998
X-Spam-Level:
X-Spam-Status: No, score=-6.998 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_NONE=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=nic.cz
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5wAnIv2uLo7F for <dns-privacy@ietfa.amsl.com>; Mon, 18 Nov 2019 05:32:15 -0800 (PST)
Received: from mail.nic.cz (mail.nic.cz [IPv6:2001:1488:800:400::400]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E045F120059 for <dns-privacy@ietf.org>; Mon, 18 Nov 2019 05:32:14 -0800 (PST)
Received: from [IPv6:2001:1488:fffe:6:2d17:16c6:cef4:5734] (unknown [IPv6:2001:1488:fffe:6:2d17:16c6:cef4:5734]) by mail.nic.cz (Postfix) with ESMTPSA id 1CB78140D22; Mon, 18 Nov 2019 14:32:13 +0100 (CET)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=nic.cz; s=default; t=1574083933; bh=IJ4vG7YGvUx/5voFAyYDz0bne1u+2YyUWjSqtqKsVLw=; h=To:From:Date; b=V7vTKxRVoCiycfo0RScxhNgLJgNIA3gqj90ZAozOVafbSm9XUIMsW4PWSpfeUc8MN hcvqAOOUKWVx3HNnp/PbB1GodZggAlztPoxHMTt/cKYYYE/EuZF0uLei3sD5oy8dus Z6w65R9g3VbbS+8h0BQb5zx94TiPKVJ6o0mEJ69I=
To: dns-privacy@ietf.org
References: <680390BE-E819-4951-98EE-C77E9C60E495@piuha.net>
From: Vladimír Čunát <vladimir.cunat+ietf@nic.cz>
Autocrypt: addr=vladimir.cunat@nic.cz; prefer-encrypt=mutual; keydata= mQINBFgDknYBEADHEQwLBlfqbVCzq7qYcBFFTc1WCAFtqiKehOrsITnKusZw4nhYwlKQxcum gj01xJOhbfHBCBeGlDydYqemKg4IfY2nwSyPwZZYMJn7L7AGrCeytr4VMvDJ7o7qDZjjim4i fv+GUwdk3plXx6oMF4nctesI8aAOuLUHAn0PfrGfNhWoaglOKgdOI6DGjhI/aGkvy+jrI/+X sdMV+3f1RuEOfI+Yu4SXFjJyhAmqEOBRxxdHqKreIIpz3Lg38yWwiVGfwgQT+nFIz9BpHH3l Wg1uS8xM3ezceBmRYV8zT9PvbeZ57BlaTR6rLae5RYwV397PSLBqqLkB5H0TDRUFBnwBsUob LebYHmJCOydvyNv5AFkLmLZ7O4j2jFo1WPSMt3ThM6wRwqrnB4Gi+6onyrZfE1DnVZMqbxZ3 VXa+E4S5YwrfCLUErGEn+d40OtoRZmQXhRPVAsdjimMj9oFM9RoxSgUrDg6Ia3n0IrKFb++z HAFbqkR5g4qzXiOMEG621GYEex2sDEKz/PD4CVKlNI9eld4ToH592kAwzJmd+sAi+Rfos0NE zxuFd0ekAOeWoURo0zoYTSWPlMOmFMvcpH6LP3leJmY7x4z/b1ng/+7UnKonVALVPFbRbElO kIfAtLKcUEofwV1jr7DyYGPalJtiDJPomB041ZHCj2RxyXY/oQARAQABtDBWbGFkaW3DrXIg xIx1bsOhdCAod29yaykgPHZsYWRpbWlyLmN1bmF0QG5pYy5jej6JAlQEEwEIAD4CGyMFCQlm AYAFCwkIBwIGFQgJCgsCBBYCAwECHgECF4AWIQS2AGRgtgqA54IGJEnnR98flXWjqgUCWg3w 3gAKCRDnR98flXWjqmD6D/96U4cDZBrHQ5LhqybocZr/N2IS5Wr2SLLB4k2F5/W/wbL05gq6 Ha9/2TMqXoxRkhug+EAHFHxylPR43yN9rz0pjBXHrra87FAPHMqq/qqrOEUdhkytEqa6WIho aoEkdhaMhUyctjVjL2WZ0+MWeRjqedLQX+VCrOVPcVbLreRRhA9N3KPgNwbp9zCg6hEPi4l2 zZKedHkTNjKIAwJ0xZoMwFa1Y+vL8Em8Or+IBZuGBMP/ZMtasPOIQaT/Gvsyx1DDorwsoCdX 6zaTZy5DOWP3FIrMzus/YDbzwAYxSpWk/jF44ySbnJzdjU67EfG3UrsK+RRGw8aJqs3/4qHK ZMZZnNL+4wJpEdnZyFic/MXcw6FBszQEwrIOaM1WEfwzn2ExUYk2pM5zaBwq76OgrmGMzMEi cfMDyqLodwEQqR70PvRbkrh+R02LphwQ9c5AFXcrLjKMmeQlbQVarTUsrELcTK6rElC1ojS7 M37j0XzFE+kgNWn2fyBRgtnGDWEa7r+oDaueXJnEf0/4Ww28IwxakNc7r0N41GIBekwSxKdk epKFZgtVGGSDlFei5hb5LLWFljA1OS7CRVJKpbHafQjdPdb1vNqZAj4y2SJXvVVpI1KO5kq+ dFdYipORv0N2Iho6MNYbQUT1EBeU46G5N0viCoLS15/PxLhIAo+PzKpW97kCDQRYA5J2ARAA yHww3huLEtsdyqgjiGMhtEKOLmp7yFl450HY9oPcHS02U5BC1370ssNShrdOCi2ACDbe41Zx x85WcuaO1OVqung2umX047mj2xQsiTAFRDLZsQu8cQFoEy/DBL2bk7ThfK1Lh+NyZAs0UaPp DkGodS0De9osA+4T6Nf4POYaeavbYVFSdDKS4lUboBqApKnD/TzKFxFcpuFx6FN92lteTbOo jGMiLoZvELY86Kn9KuFZ8FM2ZSNHx1Z75KouufGrdkeCoZYVYiuzT+fnt2it4dIpIlnF+yxM t5LB/MSrmECB5CAFJtxzuMccm6yDUZQSWWi9vUgxIJwvt5w0CIBT353DGeP4WnH0r5YoBKoR bh7i4fT0lWvMXTG/V2lqyzBdClMebyHffMgba26Kj6oeDygDfC5aGsVaqw1Ue/qQ5QRqTJcJ V7xVLTtS1EamVqkfKwPS0zTfnrF1jQtnO/P4qkfgBRRG9BXGGrykHpXOyqmX6Z0wbV2P4j+p 02oSecDl5yVXplJfsXfbS/xXnaSkaN/7mCU29ul26cAVNxDkDPunztSFi9K9LM2T/XWYJQGX M71OpmONQJGF24lx7Wp/kobnHtbjGDzjDPC4eSL7MA56qtrWaLM+4ePKANct2q0q6c0uSLs0 Q2zochS64Mcg0YzL1sinWPN1rXLDk3lwpIsAEQEAAYkCJQQYAQgADwUCWAOSdgIbDAUJCWYB gAAKCRDnR98flXWjqn4yEACA0f1XBAg+WMaNPtIt0k15yFPfhdbOg9GhDcYGgvFIOxRuaFWw 9SLUt7OGuUnIpKxKRXtQJss98fHkijo70ONYWPuLhfRGK/wg9Ao6MuFw5G8m431CBS/awrie b6iPjvAARXJCPTTBZk/NC988jiKdCh8PbTCHDsl+gSDytP15QUrdqSfS2Wf4653ej7+jtuTj xZzmGgvNSi6JDlb9KNtmBQKQAgpnOQM46ItESmzHDnmdcvhPLUDsjwkpIJ6clasOzaObwxJi ba7iFPcGwcClCSwYjMNXFtneCGUnEAa5RBIx+i+LV1iqB3VRvTC6tMIUueoQ7cdTy6afNkhw QYXm4/pDmNT8UMdnzwnlTpFQ0CegDQRDWc+dIDDBHGEEEYBh2vTOE04KrmYUp1bQsNegPfvL woHib0jEvohPMJ2fJtZAd1SJElgwPbM8H7emKBiTsHwF8gL7G2jo7AoGpqYjqXkCRS0tSLTN r+qHh+7Ltrkbu/ZVTTfh4Q/qw3VaLYQh4C0tBma/YevQy1O2c3TZXXFz1QF8b9/Hj/3sq2Kg T1AcZ51E+xG+cb6cUqgkihmgm39xx24GPlNAdCRuq01+iILol+Wox6OwF6hmqx1EMSmxcmGo UREr0rkMnFVsWeAYeVoE4q689qxCPu9iCMJMJnkRe1o9oQYSN7my+S98gA==
Cc: Jari Arkko <jari.arkko@piuha.net>
Message-ID: <c55a28de-1e5b-1977-b2e8-c4b65017ca43@nic.cz>
Date: Mon, 18 Nov 2019 14:32:59 +0100
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.2
MIME-Version: 1.0
In-Reply-To: <680390BE-E819-4951-98EE-C77E9C60E495@piuha.net>
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 8bit
Content-Language: en-US
X-Virus-Scanned: clamav-milter 0.100.3 at mail.nic.cz
X-Virus-Status: Clean
Archived-At: <https://mailarchive.ietf.org/arch/msg/dns-privacy/nWFw_tzg9nBBtawSmM5O-b1rebc>
Subject: Re: [dns-privacy] Draft on the use of multiple recursive resolvers
X-BeenThere: dns-privacy@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: <dns-privacy.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/dns-privacy>, <mailto:dns-privacy-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/dns-privacy/>
List-Post: <mailto:dns-privacy@ietf.org>
List-Help: <mailto:dns-privacy-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/dns-privacy>, <mailto:dns-privacy-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 18 Nov 2019 13:32:17 -0000
On 11/16/19 8:38 AM, Jari Arkko wrote: > https://tools.ietf.org/html/draft-arkko-abcd-distributed-resolver-selection-00 A colleague implemented the PSL approach for Knot Resolver recently where user picks the resolver set, but I'm skeptical about spreading-with-PSL significantly improving privacy. Still, it was less than one screen of code (+PSL dependency) some people have asked for this, so why not. Trusting one provider seems better to me (or two... for a fallback). If you can't trust any, you probably need a Tor-like approach to separate your address from your queries. (For now I'm leaving non-DNS leaks aside, e.g. SNI, sets of IPs usually determining the name uniquely, etc. For now I'd go for a full VPN if you trust a provider or Tor if you don't.) Client-based splitting seems to be a worsening (!) as one of privacy benefits is precisely the inter-mingling of queries from multiple clients and thus reduced ability to track the individuals. --Vladimir
- [dns-privacy] Draft on the use of multiple recurs… Jari Arkko
- Re: [dns-privacy] [Add] Draft on the use of multi… Vittorio Bertola
- Re: [dns-privacy] [Add] Draft on the use of multi… Brian Dickson
- Re: [dns-privacy] Draft on the use of multiple re… Vladimír Čunát
- Re: [dns-privacy] Draft on the use of multiple re… Vladimír Čunát
- Re: [dns-privacy] [Add] Draft on the use of multi… Jari Arkko