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Secure NTP: How to Protect Servers from Cyberattacks [closed]

Çağlar Arlı      -    48 Views

Secure NTP: How to Protect Servers from Cyberattacks [closed]

I am a beginner in cyber security and they asked me to build a secure architecture for time servers. I have 3 three NTP servers on Ubuntu, each configured with chrony, nptd, NTP (In order to test them and find out which of them is the fastest and more secure).

Any recommendations about a secure NTP architecture?

How to prevent Denial of Service (DoS), Man-in-the-Middle (MitM), Timestamp manipulation, Lack of authentication, Replay attacks, Unauthorized access, Time drift?