One command took Facebook off the internet
How a routine maintenance command on 4 October 2021 cut off every Facebook data center, made its DNS servers vanish from the internet, and locked engineers out of their own tools for nearly six hours.
01 · Every data center, at once
WS · One maintenance command took Facebook off the internet for nearly six hours
One routine command. Every data center cut off.
One command. Every data center.
4 October 2021.
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