ntpstat(1) - phpMan

NTPSTAT(1)                           General Commands Manual                           NTPSTAT(1)



NAME
       ntpstat - Print NTP synchronisation status


SYNOPSIS
       ntpstat [-m MAXERROR]


DESCRIPTION
       ntpstat  is  a  script  which prints a brief summary of the system clock's synchronisation
       status when the ntpd or chronyd daemon is running.  It prints the time source (NTP  server
       or  reference clock) to which the system clock is currently synchronised, its stratum, how
       often is the server polled, and the maximum estimated error of the clock. The script  uses
       the ntpq or chronyc program to obtain the information from the daemon.

       Following  the  NTPv4 specification (RFC 5905), if the time source becomes unreachable and
       there are no other sources that could be selected, the status of the clock will  still  be
       "synchronised", but the maximum error will be slowly increasing.

       ntpstat  exits with a status of 0 if the clock is synchronised, 1 if the clock is not syn-
       chronised, 2 if the status could not be determined, e.g.  when the daemon is not  running,
       or 3 if an invalid command-line option was specified.


OPTIONS
       -m MAXERROR
               Specify  a  maximum acceptable error of the clock in milliseconds. If the clock is
               synchronised, but its maximum estimated error  is  larger  than  MAXERROR,  or  is
               unknown, ntpstat will exit with a status of 1.

       -h      Print a help message.


SEE ALSO
       ntpd(8), ntpq(8), chronyd(8), chronyc(1)



ntpstat                                                                                NTPSTAT(1)

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