[ksk-rollover] Description of my analysis of the too-many-KSK queries problem

Wes Hardaker wjhns1 at hardakers.net
Thu Apr 4 16:23:17 UTC 2019

Evan Hunt <each at isc.org> writes:

Can you elaborate on this:

> Once the revoked key is removed, it stops.

Removed from where?  the root zone?  the cache?  The managed keys file?

> Based on sheer volume, I would guess this was a bigger contributor to the
> observed increase in DNSKEY traffic than the bug you discovered, though
> yours is odd, and definitely warrants further investigation.

Reminder: I was in an airport and working quickly right before the
flight and right before the 22nd, when the revoked key would be
removed.  I'm not *positive* there was a correlation between requests
and outgoing DNSKEY queries since this is from memory and because I was
working quickly I may not have hit the right conclusion.  Wish I had
saved pcaps... 

Wes Hardaker

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