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NTPTRACE(8)		FreeBSD	System Manager's Manual		   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 imple-
     ment 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 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 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.

FreeBSD	13.0			 June 23 2020			  FreeBSD 13.0

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXIT STATUS | NOTES

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