Re: [Resolverless-dns] Paper on Resolver-less DNS

"John Levine" <johnl@taugh.com> Mon, 19 August 2019 20:39 UTC

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Date: 19 Aug 2019 16:39:47 -0400
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From: "John Levine" <johnl@taugh.com>
To: resolverless-dns@ietf.org
Cc: sy@informatik.uni-hamburg.de
In-Reply-To: <213a986b-479c-3d38-6ec3-cf53264474c2@informatik.uni-hamburg.de>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/resolverless-dns/A_vBiGmxhyktDIZA2Fv-LpVp3UA>
Subject: Re: [Resolverless-dns] Paper on Resolver-less DNS
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In article <213a986b-479c-3d38-6ec3-cf53264474c2@informatik.uni-hamburg.de> you write:
>Nonetheless, there exists empirical evidence that several popular ISPs
>and Telcos sold data on their customers' online activities to
>advertising companies [1,2,3]. Thus, it is plausible that these ISPs and
>Telcos use their DNS resolver to aggregate such user profiles.

Actually, no, it's not plausible.  The mechanisms described in these
papers are nothing like DNS queries.  If they could get enough data
from DNS queries, why would they bother rewriting HTTP headers?

There are issues with DoH but conspiracy theories about implausible
data mining of DNS logs really are not helpful.