[cooperation-wg] DNS-based filtering

Jim

Yes, but from what I've seen most people who want geographically diverse DNS these days use a service which offers it eg. Dyn or one of the other big DNS providers.
I know you're doing it for your personal domain, but that's hardly surprising :)

Registry operators - particularly ccTLDs - do this all the time, but I don't see many registrants of domains doing it anymore. And I thought this paper was about domains more than domain registries?

Regards

Michele

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-----Original Message-----
From: Jim Reid [mailto:jim at rfc1035.com] 
Sent: Saturday, January 25, 2014 9:42 AM
To: Michele Neylon - Blacknight
Cc: cooperation-wg at ripe.net
Subject: Re: [cooperation-wg] DNS-based filtering

On 25 Jan 2014, at 02:10, Michele Neylon - Blacknight <michele at blacknight.com> wrote:

> Can you please provide examples of domains where the situation you described could exist?
> 
> Eg:
> "target domain name. In fact, for the sake of redundancy, a domain 
> name may have many authoritative servers, spread around the world and also operated by different companies."
> 
> I can't see how that could work technically, but maybe I'm missing 
> something - an example would be helpful

Ever heard of zone transfer Michele? :-)

Many organisations spread DNS service for their domains across multiple providers: avoiding single points of failure and all that. For instance many TLDs rely on a mixture of name servers they operate themselves, some provided by other TLD registries --  I'll slave your zone if you slave mine -- and others from commercial anycast providers.

It might be true that the majority of registrants just stick with whatever DNS is offered by their registrar but not all of them do that. Clueful ones certainly don't.