DragonFly On-Line Manual Pages

ntptrace(1)                      User Commands                     ntptrace(1)

NAME
       ntptrace - Trace peers of an NTP server

SYNOPSIS
       ntptrace [-flags] [-flag [value]] [--option-name[[=| ]value]] [host]

DESCRIPTION
       ntptrace is a perl script that uses the ntpq utility program to follow
       the chain of NTP servers from a given host back to the primary time
       source. For ntptrace to work properly, each of these servers must
       implement the NTP Control and Monitoring Protocol specified in RFC 1305
       and enable NTP Mode 6 packets.

       If given no arguments, ntptrace starts with localhost. Here is an
       example of the output from ntptrace:

           % ntptrace localhost: stratum 4, offset 0.0019529, synch distance 0.144135
           server2ozo.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): the host name, the host
       stratum, the time offset between that host and the local host (as
       measured by ntptrace; this is why it is not always zero for
       "localhost"), the host synchronization distance, and (only for
       stratum-1 servers) the reference clock ID. All times are given in
       seconds. Note that the stratum is the server hop count to the primary
       source, while the synchronization distance is the estimated error
       relative to the primary source. These terms are precisely defined in
       RFC-1305.

OPTIONS
       -n, --numeric
              Print IP addresses instead of hostnames.

              Output hosts as dotted-quad numeric format rather than
              converting to the canonical host names.

       -m number, --max-hosts=number
              Maximum number of peers to trace.  This option takes an integer
              number as its argument.  The default number for this option is:
                   99

              This option has not been fully documented.

       -r string, --host=string
              Single remote host.  The default string for this option is:
                   127.0.0.1

              This option has not been fully documented.

       -?, --help
              Display usage information and exit.

       -!, --more-help
              Pass the extended usage information through a pager.

       -v [{v|c|n --version [{v|c|n}]}]
              Output version of program and exit.  The default mode is `v', a
              simple version.  The `c' mode will print copyright information
              and `n' will print the full copyright notice.

EXIT STATUS
       One of the following exit values will be returned:

       0  (EXIT_SUCCESS)
              Successful program execution.

       1  (EXIT_FAILURE)
              The operation failed or the command syntax was not valid.

       70  (EX_SOFTWARE)
              libopts had an internal operational error.  Please report it to
              autogen-users@lists.sourceforge.net.  Thank you.

NOTES
       This manual page was AutoGen-erated from the ntptrace option
       definitions.

ntp (4.2.8p6)                     20 Jan 2016                      ntptrace(1)