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Cloudflare 1.1.1.1 incident on June 27, 2024 (blog.cloudflare.com)

submitted 5 months ago by lysdexic to c/loud

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[–] [email protected] 6 points 5 months ago (1 children)

I gave up their dns quite long ago, I was getting slow internet regularly and some day I discovered accidentally that it was their fault.

[–] lysdexic 6 points 5 months ago (1 children)

It's interesting that the internet is packed with search hits of complains that Cloudflare's DNS is slowing everything but Cloudflare representatives are quick to post followups pointing the finger everywhere else.

[–] BB_C 5 points 5 months ago

That's like the most trivial of theories one can test for.

Save response time every minute

while true; do /usr/bin/time -f "%e `date`" dig '@1.1.1.1' +noall programming.dev &>>/tmp/dns_clf_perf.txt; sleep 60; done

Then after a while (maybe a couple of days), check the worst numbers:

sort -n /tmp/dns_clf_perf.txt |tail

Run the same script with a different DNS server at the same time, and compare numbers.

Dates included in case there are any patterns regarding the time of day/week.