NAME    [Toc]    [Back]

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

SYNOPSIS    [Toc]    [Back]

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

OPTIONS    [Toc]    [Back]

       Turns on some debugging output.  Turns off the printing of
       host names; instead, host IP addresses  are  given.   This
       may be necessary if a nameserver is down.  Sets the number
       of retransmission attempts for each  host;  default  =  5.
       Sets the retransmission timeout (in seconds); default = 2.
       Prints verbose information about the NTP servers.

DESCRIPTION    [Toc]    [Back]

       The ntptrace command 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.

       The following is an example of the output from ntptrace: %
       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): the host
       name, the host's 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's  synchronization
  distance,  and  (only for stratum-1 servers)
       the reference clock ID.  All times are given  in  seconds.
       (Synchronization  distance is a measure of the goodness of
       the clock's time.)

SEE ALSO    [Toc]    [Back]

       Commands: xntpd(8), xntpdc(8)



                                                      ntptrace(8)