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Understanding how Facebook disappeared from the internet

blog.cloudflare.com

131–140 of 280 posts

Re: Understanding how Facebook disappeared from the internet

#131

Is anyone else kinda put off by how Cloudflare keeps interjecting themselves into this situation? First with the Twitter posts and now this blogpost. They're a passive observer, not involved in this event, and yet they keep putting themselves in the middle of it. Cloudflare staff are not Facebook staff, they do not know how things actually went down to trigger the events that transpired. They are essentially doing gl…

it's kinda their whole objective- to keep sites up and running. so of course they'll do commentaries- it's for marketing and helps stimulate discussions in their industry.

Re: Understanding how Facebook disappeared from the internet

#132
post #79

Earlier quoted context omitted.

It's merely an informative blog post on a topic many people are interested in. I see nothing wrong with Cloudflare just explaining what happened, even though they had nothing to do with it.

> I see nothing wrong with Cloudflare just explaining what happened, even though they had nothing to do with it. You kinda inadvertently highlighted the issue: because they had nothing to do with it, they do not know what actually happened. They can pontificate about likely causes, just like others in the industry can, but they have no idea what actually caused the issue.

I think your criticism is unfair.

> They can pontificate about likely causes

They can, but they didn't.

Re: Understanding how Facebook disappeared from the internet

#133

This is a great write-up, but one thing I don't understand is why the effect of withdrawing the BGP prefixes was instantaneous (if I understand that correctly), but it's taking hours (so far) to re-announce the prefixes. Why would it take so long to flip the switch back the other way?

At a guess: reconnecting traffic at the billions-of-people scale has the potential for finding all sorts of weird behaviours. For all we know, it has been connected and disconnected 10x already during the outage, with each reconnect overwhelming some new, deeper level of the system each time. Reconnect and the GLBs fall apart under load as the entire world’s cadre of recursive resolvers hit you. Fix that. Reconnect a…

I find this kind of uninformed conjecture amusing on a thread full of people complaining about cloudflare doing the same (they didn't). There's no evidence of this kind of flapping behavior in any of the telemetry I've seen posted by network engineer friends, and the blog post explicitly calls out when they saw the BGP updates that brought the site back online.

Re: Understanding how Facebook disappeared from the internet

#134

Is anyone else kinda put off by how Cloudflare keeps interjecting themselves into this situation? First with the Twitter posts and now this blogpost. They're a passive observer, not involved in this event, and yet they keep putting themselves in the middle of it. Cloudflare staff are not Facebook staff, they do not know how things actually went down to trigger the events that transpired. They are essentially doing gl…

Ironically, I read this and thought "I like this and these people are doing the sort of things I like doing, maybe I should think about working with them if and when I need another job."

Sample size of 1, but I imagine that's more or less the reaction they're hoping for.

Re: Understanding how Facebook disappeared from the internet

#135

Is anyone else kinda put off by how Cloudflare keeps interjecting themselves into this situation? First with the Twitter posts and now this blogpost. They're a passive observer, not involved in this event, and yet they keep putting themselves in the middle of it. Cloudflare staff are not Facebook staff, they do not know how things actually went down to trigger the events that transpired. They are essentially doing gl…

I like having a knowledgeable 3rd party report. Keeps the 1st party honest.

Re: Understanding how Facebook disappeared from the internet

#136
post #79

Earlier quoted context omitted.

It's merely an informative blog post on a topic many people are interested in. I see nothing wrong with Cloudflare just explaining what happened, even though they had nothing to do with it.

> I see nothing wrong with Cloudflare just explaining what happened, even though they had nothing to do with it. You kinda inadvertently highlighted the issue: because they had nothing to do with it, they do not know what actually happened. They can pontificate about likely causes, just like others in the industry can, but they have no idea what actually caused the issue.

They don't claim to; they had useful information to share and shared it in a way that was helpful and informative to the lay engineer.

Re: Understanding how Facebook disappeared from the internet

#137
post #125

All very amusing. But most amusing was that facebook employees' badges wouldn't work. Hilarious. Can't get in the office if facebook.com is not reachable. (or whatever the unreachable service was)

It wouldn't be the first time it's happened, and you would expect their network and security folk to understand single points of failure.

A single point of failure implies a single point of control. A dungeonmaster. There can be only one.

Re: Understanding how Facebook disappeared from the internet

#138
post #125

Earlier quoted context omitted.

It wouldn't be the first time it's happened, and you would expect their network and security folk to understand single points of failure.

A single point of failure implies a single point of control. A dungeonmaster. There can be only one.

DND driven development or backdoor? You decide!

But, seriously, it could use a separated network with federation like an AD domain.

Re: Understanding how Facebook disappeared from the internet

#139
post #125

All very amusing. But most amusing was that facebook employees' badges wouldn't work. Hilarious. Can't get in the office if facebook.com is not reachable. (or whatever the unreachable service was)

It wouldn't be the first time it's happened, and you would expect their network and security folk to understand single points of failure.

You would think those in charge of security would know better with their mid-six figure salaries. But then again these days they stopped hiring based on merit but rather certain other “metrics” no wonder they were so incompetent...

Re: Understanding how Facebook disappeared from the internet

#140
post #125

Earlier quoted context omitted.

It wouldn't be the first time it's happened, and you would expect their network and security folk to understand single points of failure.

You would think those in charge of security would know better with their mid-six figure salaries. But then again these days they stopped hiring based on merit but rather certain other “metrics” no wonder they were so incompetent...

Which metrics are they using to hire E6s and up? Because those are the only ones making 500k+
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