I think ECS is good for CDNs. But it brings such a great extra load to both the recursive resolver and the authoritative name servers. The first question is to check if there're any other public recursive resolver that supports ECS so I could ask it to enable the ESC white list for our domain names. The second question is to check if there is any research on how to increase the popularity of ECS and how to make ECS higher performance.
Anyway ,thanks for your answer. On Mon, Jul 8, 2013 at 6:44 PM, Florian Streibelt <[email protected] > wrote: > On Mon, 8 Jul 2013 18:15:20 +0800 > ice jew <[email protected]> wrote: > > > There is 2 questions about deployment. > > 1,Is there any other recursive resolver that adopts ECS except Google > and > > OpenDNS? > > That is not easy to tell. In the paper we focused on the authoritative NS. > The reason is that e.g. google and opendns manually whitelist the > authoritative nameservers they send ECS enabled queries to prevent failures > in name resolution. > (Some resolvers seem to behave quite strangly if they don't understand the > extention.) > > > 2,Is there any open source solution of recursive resolver that supports > ECS? > > I am not aware of any - for testing purposes I did a rough patch against a > dns proxy but thats only usable for debuggging and not public. > This makes it especially hard to get whitelisted to find answers to your > first question. > _______________________________________________ > DNSOP mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/dnsop >
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