Networking Guide
Chapter 16, Configuring the Network Time Protocol (NTP)

For more about NTP

For more about NTP

To obtain more information about DNS files and commands, consult the following manual pages:

 ---------------------------------------------------------
 Manual page      Purpose
 ---------------------------------------------------------
 ntpdate(ADMN)    set the date and time via NTP
 ntpq(ADMN)       standard NTP query program
 ntptrace(ADMN)   trace a chain of NTP hosts
                  back to their master time source
 xntpd(ADMN)      NTP daemon
 xntpdc(ADMN)     query/control program for the NTP daemon
To get more information about NTP and related protocols, see the following Requests for Comments (RFCs). 
 -------------------------------------------------
 RFC    Title
 -------------------------------------------------
 1059   Network Time Protocol Version 1
        specification and implementation
 1119   Network Time Protocol Version 2
        specification and implementation
 1128   Measured performance of the Network Time
        Protocol in the Internet system
 1129   Internet time synchronization: The Network
        Time Protocol
 1305   Network Time Protocol Version 3