Facebook shows signs of life after hours-long outage

Following a major outage that brought down Facebook, Instagram and WhatsApp for nearly six hours on Monday, the social media giant's flagship services are lurching back to life.

Facebook, Instagram, WhatsApp, Messenger and Oculus VR all but disappeared from the internet at around 11:30 a.m. Eastern, due to what appears to be a misconfiguration of Facebook's servers. After nearly six hours of downtime, Facebook's services began to reappear for some users, though a full recovery is not expected for some time.As detailed in a blog post from Cloudflare, the issue traces back to a Border Gateway Protocol (BGP) update that ran afoul, impacting traffic routing and resulting in Domain Name System (DNS) failures. BGP is a system used by networks to advertise their presence to other networks and route traffic accordingly. Without routing information announced by Facebook, DNS resolvers are unable to respond to queries for IP addresses like facebook.com and instagram.com.

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