How to replace ntpdate Post: 302309162

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LEARN ABOUT SUNOS

ntptrace

ntptrace(1M)						  System Administration Commands					      ntptrace(1M)

NAME

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

SYNOPSIS

       /usr/sbin/ntptrace [-vdn] [-r retries] [-t timeout] [server]

DESCRIPTION

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

OPTIONS

       The following options are supported:

       -d	       Turns on some debugging output.

       -n	       Turns off the printing of host names; instead, host IP addresses are given.  This may be necessary if a nameserver is down.

       -r retries      Sets the number of retransmission attempts for each host.

       -t timeout      Sets the retransmission timeout (in seconds); default = 2.

       -v	       Prints verbose information about the  NTP servers.

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(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWntpu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       xntpd(1M), attributes(5)

BUGS

       This program makes no attempt to improve accuracy by doing multiple samples.

SunOS 5.10							    19 Mar 1998 						      ntptrace(1M)