Chapter 13. Network Time Protocol (NTP)

Terms you'll need to understand:

  • /etc/inet/ntp.conf

  • Drift

  • NTP client

  • NTP peer server

  • NTP time server

  • Reference clock

  • Strata

  • Stratum levels

Concepts you'll need to master:

  • Describe the purpose, features, and functions of NTP, and define NTP terms.

  • Explain how to configure an NTP server and an NTP client.

  • Explain how to view logs and use snoop to troubleshoot an NTP problem.

Time is a critical part of operating in a networked environment, particularly when so many time-critical applications are in operation. This chapter describes the Network Time Protocol (NTP), which achieves the best possible time synchronization among machines connected to a network.

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