Hello Shumon,
On 28 Mar 2017, at 14:08, Shumon Huque wrote:
OpenDNS also has had a similar feature (exact protocol unpublished
AFAICT)
for a while now (Smartcache, ~ 2009 I think).
There is some background at https://www.youtube.com/watch?v=Gt9VUPDoZk0
starting at 14:33. Slides at
https://indico.dns-oarc.net/event/24/session/8/contribution/13/material/slides/2.pdf
(slide 7).
Kind regards,
--
Peter van Dijk
PowerDNS.COM BV - https://www.powerdns.com/
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