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
ntpd(ADMN)	NTP daemon
ntpdc(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