System Administration Guide, Volume 2

Using Network Time Protocol (NTP) in Your Network

The Network Time Protocol (NTP) public domain software from the University of Delaware is included in the Solaris software starting with the Solaris 2.6 release.

NTP enables you to manage precise time and network clock synchronization in a network environment. The xntpd daemon sets and maintains the system time-of-day. The xntpd daemon is a complete implementation of the version 3 standard, as defined by RFC 1305.

The xntpd daemon reads the /etc/inet/ntp.conf file at system startup. See xntpd(1M) for information about configuration options.

Keep the following in mind when using NTP in your network: