[dns-operations] Akamai outages possibly related to Edge DNS?

[Stephane Bortzmeyer]

On Thu, Jul 22, 2021 at 09:53:25AM -0700,
 Mauricio Vergara Ereche <mave at cero32.cl> wrote 
 a message of 90 lines which said:

> Seeing several reports of sites going down
> 
> Some people blaming AWS, others Akamai Edge DNS

Clearly Akamai Edge. They acknowledged it on their status site "a
software configuration update triggered a bug in the DNS system, the
system that directs browsers to websites. This caused a disruption
impacting availability of some customer websites."

As usual on the modern Web, where every page depends on several remote
things, it created cascading problems, leading to erroneous
diagnostics about the real root of the problem.

The authoritative name servers for Akamai Edge returned SERVFAIL
during the problem:

https://pbs.twimg.com/media/E66ejnmXsAYDSEZ?format=png&name=small