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Hey! Facebook engineer here. If you have it, can you send me the User-Agent for these requests? That would definitely help speed up narrowing down what's happen
by cdown 6y ago
Hey! Facebook engineer here. If you have it, can you send me the User-Agent for these requests? That would definitely help speed up narrowing down what's happening here. If you can provide me the hostname being requested in the Host header, that would be great too.
I just sent you an e-mail, you can also reply to that instead if you prefer not to share those details here. :-)
- deleted 6y ago[deleted]
- traverseda 6y agoI'm not sure I'd publicly post my email like that, if I worked at FB. But congratulations on your promotion to "official technical contact for all facebook issues forever".
- cdown 6y agoMy e-mail address is already public from my kernel commits and upstream work. :-)
- doommius 6y agoDon't think I used my email for anything important doing my time at FB. If it gets out of hand he could just make a request to have a new primary email made and use the above one for "spam"
- thirtythree 6y agoCuriousity question: does FB use Gmail/Google suite?
- callalex 6y agoMy impression is that they pretty much roll their own communication suite.
- rock_hard 6y agoThat’s somewhat correct But at least for email/calendar backend its exchange The internal replacement clients for calendar and other things are killer...have yet to find replacements For the most part though they use Facebook internally for messaging and regular communication (technically now Worplace but before it was just Facebook) Email is really just for external folks
- dan15 6y agoFB uses Office365 for email. It was on-premise Exchange many many years ago, but moved "to the cloud" a while back.
- hirako2000 6y agoFeels odd to read Facebook uses office365/exchange for emails. they haven't built their fsuite yet, I thought they would simply promote Facebook messenger internally. I'm only half joking.
- dan15 6y agoMost communication is via Workplace (group posts and chat). Emails aren't very common any more - mainly for communication with external people and alerting.
- napolux 6y agoI don't want to share my website for personal reasons, but here is some data from cloudflare dashboard (a request made on 11 Jun, 2020 21:30:55 from Ireland, I have 3 requests in the same second from 2 different IPs) user-agent: facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php http://www.facebook.com/externalhit_uatext.php) ip 1: 2a03:2880:22ff:3::face:b00c (1 request) ip 2: 2a03:2880:22ff:b::face:b00c (2 requests) ASN: AS32934 FACEBOOK
- napolux 6y agoYes requests are still coming. Thanks CloudFlare for saving my ass.
- fsociety 6y agoThanks for looking at this!
- qroshan 6y agoyeah, for all you know, it could just a naive/rogue employee building a crawler for his personal/20% project
- purple_ferret 6y agoPlease ask Zuck to resign while you're at it. Thanks.
- Ueland 6y agoHey, I can by the way confirm this issue. I work in a large newspaper in Norway and around a year ago we saw the same issue. Thousands of requests per second until we blocked it . And after we blocked it, traffic to our Facebook page also plummeted. I assume Facebook considered our website down and thus wouldn't give users content from our Facebook page either as that would serve them content that would give a bad user experience. The Facebook traffic did not normalize before the attack stopped AND after we told Facebook to reindex all our content. I'd you want more info, send me a email and il dig out some logs etc. thu at db.no