[dns-operations] bind + client-subnet

Florian Streibelt dnsops_x730df7439 at spamfaenger.f-streibelt.de
Tue Aug 13 16:51:55 UTC 2013

Am Di, 13.08.13 um 16:14:54 Uhr 
schrieb "Wessels, Duane" <dwessels at verisign.com>:

> On Aug 13, 2013, at 3:30 AM, Jared Mauch <jared at puck.nether.net> wrote:
> > We've seen poor CDN performance as a result of them only being granular to a /24 scope, as well as folks using the 'wrong' dns servers and being sent to CDN nodes a few networks or continents away.
> FYI it is my understanding that some or most of the authoritative servers
> that support edns-client-subnet are whitelisting the large recursives that
> need it.  So if you deploy it you'll have to work with all them them to get
> yourself whitelisted.
> http://b4ldr.wordpress.com/2012/02/13/mapping-cdn-domains/
> https://groups.google.com/forum/#!topic/public-dns-discuss/8pcsJzNK0Gk

thats correct - joining the 'fasterinternet' mailinglist and announcing that you are interested will usually result in an email contact off list. Your servers will then manually be checked if they support the extention and then be whitelisted.

Yes, this does not exactly scale and is a fully manual process.


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