[dns-operations] Everyone having their own resolver

Rick Wesson rick at support-intelligence.com
Wed Feb 3 17:50:58 UTC 2016

openDNS provides an API into their data that you could leverage to answer
these and many other research questions. You should ask their CTO Dan


On Wed, Feb 3, 2016 at 9:20 AM, Paul Hoffman <phoffman at proper.com> wrote:

> On 3 Feb 2016, at 7:41, Matthew Pounsett wrote:
> The existing infrastructure can probably handle it initially, sure .. but
>> expect your domain registrations and DNS hosting to be an order of
>> magnitude more expensive.   Much of the authoritative infrastructure has an
>> overhead multiplier built into its capacity, where the multiplier is
>> locally chosen based on the likelihood and impact of DDoS.  Some
>> infrastructures are built to handle over 100x the “normal” traffic load.
>> When the normal query rate sees an order (or two) magnitude jump, it eats
>> away that extra capacity built into the system, and everyone has to scale
>> up to get back their DDoS-eating overhead.
> These are interesting bold statements, and I've heard similar over the
> past few years.
> Has anyone ever measured this? That is, there are a bunch of people on
> this very mailing list who have access to the caches and possibly even the
> query logs for Very Large Resolvers. It would be grand to see current
> research (or at least a list of good recent research) on what percentage of
> queries are for things in the long tail.
> --Paul Hoffman
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