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NTPTRACE(1)			    NTPsec			   NTPTRACE(1)

NAME
       ntptrace	- trace	peers of an NTP	server

SYNOPSIS
       ntptrace	[-V | --version] [-n |--numeric]
	   [-m number |	--max-hosts=number]
	   [-r host | --host=remote]
	   hostname

DESCRIPTION
       ntptrace	is a python 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 control packets. Nowadays it is usual	for public timeservers
       to disable Mode 6 queries, so this script is unlikely to	be very	useful
       unless you have a collection of specially-configured timeservers	on
       your LAN.

       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 'GPS'

       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.

       -r string, --host=string
	   Trace a single remote host.

       -V, --version
	   Print the version string and	exit.

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 invocation was not valid.

NTPsec 1.1.9			  08/29/2020			   NTPTRACE(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXIT STATUS

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