NTP reflection: Mirror, mirror, on the wall, who's the DDoS'iest of them all?

Network Time Protocol DDoS vuln only needs one bad apple.

In an "ugly" turn of events, a vulnerability in many NTP servers helps hackers deny service to others. Using a reflection attack, they managed to create 400 Gb/s of traffic to a single CloudFlare IP address. Presumably while cackling, "Amplify THIS!"

Do you run an NTP server? Have you made sure it's not vulnerable?

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