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Facebook was offline for hours. Along with Instagram, WhatsApp, and Oculus. Why? Well, it was DNS. Specifically, a BGP issue. When will it be back up? Well, there are a lot of reasons why it's taking so long—not the least of which is their physical data center access is down because it is tied into their LDAP authentication system—which is *also* down!
#Shorts #Facebook #Sysadmin