ntptrace
(1m)
名前
ntptrace - trace a chain of NTP hosts back to their master
time source
形式
/usr/sbin/ntptrace [-n] [-m maxhosts] [server]
説明
SunOS 5.11 1
System Administration Commands ntptrace(1M)
NAME
ntptrace - trace a chain of NTP hosts back to their master
time source
SYNOPSIS
/usr/sbin/ntptrace [-n] [-m maxhosts] [server]
DESCRIPTION
ntptrace determines from where a given Network Time Protocol
(NTP) server gets its time, and follows the chain of NTP
servers back to their master time source. If given no argu-
ments, it starts with localhost.
OPTIONS
The following options are supported:
-n Turns off the printing of host names; instead,
host IP addresses are given.
-m maxhosts Sets the maximum number of levels up the chain
that will be followed.
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
SunOS 5.11 Last change: 1
System Administration Commands ntptrace(1M)
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 | service/network/ntp |
+---------------+---------------------+
|Stability | Volatile |
+---------------+---------------------+
SEE ALSO
ntpq(1M), ntpd(1M), ntpdc(1M), attributes(5))
NOTES
This software was built from source available at
https://java.net/projects/solaris-userland. The original
community source was downloaded from http://ar-
chive.ntp.org/ntp4/ntp-dev/ntp-dev-4.2.7p381.tar.gz
Further information about this software can be found on the
open source community website at http://www.ntp.org/.
SunOS 5.11 Last change: 2