Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

ntpstat(8) [centos man page]

ntpstat(8)						      System Manager's Manual							ntpstat(8)

ntpstat - show network time synchronisation status SYNOPSIS
ntpstat will report the synchronisation state of the NTP daemon running on the local machine. If the local system is found to be synchro- nised to a reference time source, ntpstat will report the approximate time accuracy. RETURNS
ntpstat returns 0 if clock is synchronised. ntpstat returns 1 if clock is not synchronised. ntpstat returns 2 if clock state is indeter- minant, for example if ntpd is not contactable. SEE ALSO
ntpdc, ntpdq AUTHOR
G. Richard Keech ( 4th Berkeley Distribution $Date: 2001/06/22 03:27:10 $ ntpstat(8)

Check Out this Related Man Page

NTPD(8) 						      System Manager's Manual							   NTPD(8)

ntpd - "Network Time Protocol daemon" SYNOPSIS
ntpd [-dnSsv] [-f file] DESCRIPTION
The ntpd daemon synchronizes the local clock to one or more remote NTP servers or local timedelta sensors. ntpd can also act as an NTP server itself, redistributing the local time. It implements the Simple Network Time Protocol version 4, as described in RFC 2030, and the Network Time Protocol version 3, as described in RFC 1305. ntpd uses the adjtime(2) system call to correct the local system time without causing time jumps. Adjustments larger than 128ms are logged using syslog(3) with LOG_INFO priority. The threshold value is chosen to avoid having local clock drift thrash the log files. Should ntpd be started with the -d option, all calls to adjtime(2) will be logged. When ntpd starts up, it reads settings from a configuration file, typically ntpd.conf(5). The options are as follows: -d Do not daemonize. If this option is specified, ntpd will run in the foreground and log to stderr. -f file Use file as the configuration file, instead of the default /etc/openntpd/ntpd.conf. -n Configtest mode. Only check the configuration file for validity. -S Do not set the time immediately at startup. This is the default. -s Set the time immediately at startup if the local clock is off by more than 180 seconds. Allows for a large time correction, elimi- nating the need to run rdate(8) before starting . -v This option allows ntpd to send DEBUG priority messages to syslog. When ntpd receives a SIGINFO signal, it will write its peer and sensor status to syslog. FILES
/etc/openntpd/ntpd.conf default ntpd configuration file /var/lib/openntpd/ntpd.drift drift file, written by ntpd periodically and used at startup to get the initial clock drift SEE ALSO
date(1), adjfreq(2), adjtime(2), ntpd.conf(5), rdate(8), timed(8) , Network Time Protocol (Version 3), March 1992. , Simple Network Time Protocol (SNTP) Version 4, October 1996. HISTORY
The ntpd program first appeared in OpenBSD 3.6 . $Mdocdate: November 10 2007 $ NTPD(8)
Man Page