[dns-operations] C-root incident

Sebastian Wiesinger sebastian at karotte.org
Fri May 24 09:11:54 UTC 2024


* Paul Vixie via dns-operations <dns-operations at dns-oarc.net> [2024-05-23 16:19]:
> 2024‑05‑23 - On May 21 at 15:30 UTC the c-root team at Cogent
> Communications was informed that the root zone as served by c-root
> had ceased to track changes from the root zone publication server
> after May 18. Analysis showed this to have been caused by an
> unrelated routing policy change whose side effect was to silence the
> relevant monitoring systems. No production DNS queries went
> unanswered by c-root as a result of this outage, and the only impact
> was on root zone freshness. Root zone freshness as served by c-root
> was fully restored on May 22 at 16:00 UTC.

So would I be correct in assuming that somewhere in their peering
wars, Cogent depeered someone that hosted their monitoring system? Is
that what we're talking about here?

Best Regards

Sebastian

-- 
'Are you Death?' ... IT'S THE SCYTHE, ISN'T IT? PEOPLE ALWAYS NOTICE THE SCYTHE.
            -- Terry Pratchett, The Fifth Elephant


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