[jurajmlich]

It seems it has caused DNS servers crash for one of biggest Czechia's internet provider - Vodafone. Can be unrelated but I doubt it (https://twitter.com/BlazejKrajnak/status/1445063232486531099).

Think of it - half the country doesn't have internet because of this crash, that's terrifying. (Switching DNS servers obviously works but that's not something the general population will do)

[megous]

If only the news reporting was not as stupid as "internet is not working at UPC", instead of DNS resolvers at UPC crashed, here's what you can do...

Anyway, I didn't even notice since I run knot-resolver at home.

I wonder what it will be like connecting Facebook back to the internet, thundering herd and everything...

[yourad_io]

I suspect that the DNS aspect will be fine. The middle DNS servers only need one valid response to cache it for $TTL, but they can't cache SERVFAIL.

[yourad_io]

> but they can't cache SERVFAIL.

Correction: according to Cloudflare's blog post, some do cache errors as well.

[megous]

I mean connecting your company to the internet when you have billions of devices waiting in the line to fetch updates, or whatever.

Will not that be an issue? Re-enabling routing to such a massive internet service...

[yourad_io]

I suspect it will slowly get there. We'll find out, it is recovering now.

[TobTobXX]

Quite likely. Cloudflare has a report that outlines the reason behind it: https://blog.cloudflare.com/october-2021-facebook-outage/

[agilob]

Same in the UK, I've just experienced external DNS outage on BT!

[blntechie]

All most people have to do now is install an app and it takes care. But messaging need to go from media and news.

[alexdumitru]

Vodafone is down in Romania too.