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ntptrace(8)			 User Commands			   ntptrace(8)



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 exam-
       ple 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 mea-
       sured 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 stra-
       tum  is	the server hop count to the primary source, while the synchro-
       nization 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 convert-
	      ing 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  defini-
       tions.



ntp (4.2.8p11)			  27 Feb 2018			   ntptrace(8)