During this season of giving, you can show your support for the NTP Project by making a donation to Network Time Foundation.


OpenNTPD is an independent partial re-implementation of NTP. It aims to be a simple, reliable, and highly secure implementation.

Related Topics: the OpenNTPD project site


  • OpenNTPD does not have micro-second accuracy as a design goal
  • Unicast only; Multicast/Manycast/Broadcast modes not supported
  • No suport for NTP Authentication
  • No support for Reference Clocks
Topic revision: r4 - 22 Feb 2008, SteveKostecke
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