this post was submitted on 19 Nov 2025
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363
Cloudfare outage post mortem (blog.cloudflare.com)
submitted 1 day ago by homura1650@lemmy.world to c/technology@lemmy.world
57 comments fedilink hide all child comments
 

The issue was not caused, directly or indirectly, by a cyber attack or malicious activity of any kind. Instead, it was triggered by a change to one of our database systems' permissions which caused the database to output multiple entries into a “feature file” used by our Bot Management system. That feature file, in turn, doubled in size. The larger-than-expected feature file was then propagated to all the machines that make up our network.

The software running on these machines to route traffic across our network reads this feature file to keep our Bot Management system up to date with ever changing threats. The software had a limit on the size of the feature file that was below its doubled size. That caused the software to fail.

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[–] dan@upvote.au 10 points 1 day ago* (last edited 15 hours ago)

there really isn't much in the way of an alternative

Bunny.net covers some of the use cases, like DNS and CDN. I think they just rolled out a WAF too.

There's also the "traditional" providers like AWS, Akamai, etc. and CDN providers like KeyCDN and CDN77.

I guess one of the appeals of Cloudflare is that it's one provider for everything, rather than having to use a few different providers?