[dns-operations] comcast.net DNSSEC validation issues

Rob Foehl rwf at loonybin.net
Fri Jun 30 23:42:57 UTC 2017

On Thu, 22 Jun 2017, Rob Foehl wrote:

> So far this morning, I've had intermittent issues on a handful of the 9.9 
> resolvers, but not all of them -- not sure which queries are responsible now, 
> but the frequency has dropped off significantly.

Just to follow up on this: I'm still not sure what caused the issue, but 
whatever it was hasn't occurred since Thu Jun 22 16:44:49 EDT 2017 -- the 
hack I'd left in place to flush caches in case of trouble has been silent 
since, and I haven't been able to trigger it with any of the queries 
that'd previously appeared in the bad cache.


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