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ntptrace(8)

ntptrace(8)             System Administration Commands             ntptrace(8)

NAME
       ntptrace - trace a chain of NTP hosts back to their master time source

SYNOPSIS
       /usr/sbin/ntptrace [-n] [-m maxhosts] [server]

DESCRIPTION
       ntptrace  determines  from  where  a  given Network Time Protocol (NTP)
       server gets its time, and follows the chain of   NTP  servers  back  to
       their master time source. If given no arguments, it starts with  local‐
       host.

OPTIONS
       The following options are supported:

       -n            Turns  off  the  printing of host names; instead, host IP
                     addresses are given.


       -m maxhosts   Sets the maximum number of levels up the chain that  will
                     be followed.


EXAMPLES
       Example 1 Sample Output From the ntptrace Command

       The following example shows the output from the ntptrace command:


         % ntptrace


          localhost: stratum 4, offset 0.0019529, synch distance 0.144135
          server2.bozo.com: stratum 2, offset 0.0124263, synch distance 0.115784
          usndh.edu: stratum 1, offset 0.0019298, synch distance 0.011993, refid 'WWVB'



       On each line, the fields are (left to right):


           o      The server's host name

           o      The server's stratum

           o      The  time  offset between that server and the local host (as
                  measured by ntptrace; this is why it is not always zero  for
                  localhost)

           o      The host's synchronization distance

           o      The reference clock ID (only for stratum-1 servers)

       All  times  are given in seconds. Synchronization distance is a measure
       of the goodness of the clock's time.


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:

       box; cbp-1 | cbp-1 l | l .  ATTRIBUTE TYPE ATTRIBUTE VALUE = Availabil‐
       ity   service/network/ntp = Stability Volatile

SEE ALSO
       ntpq(8), ntpd(8), attributes(7))




NOTES
       Source code for open source software components in Oracle  Solaris  can
       be found at https://www.oracle.com/downloads/opensource/solaris-source-
       code-downloads.html.

       This software was built from source available at:
       https://github.com/oracle/solaris-userland

       The original community source was downloaded from:
       http://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-4.2/ntp-4.2.8p18.tar.gz

       Further information about this software can be found on the open source
       community website at http://www.ntp.org/.

                                                                   ntptrace(8)
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