How to configure chrony key-based authentication for NTP time sync

Solution Verified - Updated -

Issue

  • chrony key-based authentication for NTP (Network Time Protocol) time sync between NTP server and location devices such as switches, printers, etc.

  • How to configure chrony key-based authentication (also called Symmetric Keys) for NTP time sync.

Environment

  • Red Hat Enterprise Linux 7, 8
  • chrony

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