[dns-operations] rate-limiting state

[Tony Finch]

David C Lawrence <tale at akamai.com> wrote:
>
> Maybe Patrick glossed over the mere "1000 qps", which for many (most?
> hand-waving) operators doesn't even blip as an attack.  At the
> attack-level traffic to which he is accustomed, the inbound requests
> can easily surpass the server's ability to generate responses even if
> it ends up not sending most of them.

At that point the name server itself is the victim, and there isn't
anything it can do about the attack - DDoS mitigation has to happen well
upstream of the victim.

I picked 1000pps because it is enough to trigger RRL without killing the
server.

Tony.
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