The z/OS UNIX sntpd command
is used to start the sntp daemon.
Note: TCP/IP must be started prior
to starting SNTPD.
Format
>>-sntpd--------------------------------------------------------> >--+-+-----------------+-+---------------+-+----------------------------+-+----------------------------+-+-------+-+->< | +- -d-------------+ '- -pf pathname-' | .-unicast mode-. | | .-unicast mode-. | '- -s n-' | | '- -df --pathname-' '-+--------------+- -b nnnnn-' '-+--------------+- -m nnnnn-' | '-?-------------------------------------------------------------------------------------------------------------'
Parameters
- -?
- Specifies the command help.
- -d
- Enables debugging. Debug messages go to the syslog daemon.
- -df pathname
- Enables debugging. Debug messages go to the specified file location.
For example:
-df /var/sntpd.debug - -pf pathname
- z/OS UNIX file
system path for the pid file. For example:
-pf /var - -b nnnnn
- Act in broadcast mode. Send local broadcasts on all interfaces every nnnnn seconds. Valid values are in the range 1 – 16 284. Listen for requests and respond with unicast replies.
- -m nnnnn
- Act in multicast mode. Send multicast updates (TTL = 1) on all interfaces every nnnnn seconds. Valid values are in the range 1 – 16 284. Listen for requests and respond with unicast replies.
- -s n
- Use n as the stratum level in all replies
sent by the server. Valid values for n are
in the range 1 – 15. The stratum level indicates the relative
accuracy of the local clock compared to the clocks of other SNTP servers
in the network. One is most accurate. Fifteen is least accurate.
If -s is not specified or an invalid value is specified, the default stratum level will be 1.
Note: The SNTP server always responds to client
requests (unicast mode) whether the -b, -m,
or both start options are specified.
Examples
Sample SNTPD debug output
Tue Apr 2 15:26:14 2002 Writing PID to file /etc/sntpd.pid
Tue Apr 2 15:26:14 2002 EZZ9602I SNTP server initializing
Tue Apr 2 15:26:14 2002 Initializing signal handling
Tue Apr 2 15:26:14 2002 Set sigaction of signal SIGINT
Tue Apr 2 15:26:14 2002 Set sigaction of signal SIGTERM
Tue Apr 2 15:26:14 2002 Set sigaction of signal SIGABND
Tue Apr 2 15:26:14 2002 Set sigaction of signal SIGABRT
Tue Apr 2 15:26:14 2002 Set sigaction of signal SIGQUIT
Tue Apr 2 15:26:14 2002 Set sigaction of signal SIGHUP
Tue Apr 2 15:26:14 2002 Set sigaction of signal SIGTTOU
Tue Apr 2 15:26:14 2002 Initializing MVS command handling
Tue Apr 2 15:26:14 2002 Initializing pthread for MVS command
Tue Apr 2 15:26:14 2002 Initializing UDP socket(s)
Tue Apr 2 15:26:15 2002 SNTP port was set to 123
Tue Apr 2 15:26:15 2002 Bound to address: 9.67.2.1
Tue Apr 2 15:26:15 2002 Bound to address: 9.67.115.15
Tue Apr 2 15:26:15 2002 Bound to address: 9.67.2.2
Tue Apr 2 15:26:15 2002 Bound to address: 0.0.0.0
Tue Apr 2 15:26:15 2002 Initializing pthread for multicast/broadcast
Tue Apr 2 15:26:15 2002 Initializing pthread for unicast
Tue Apr 2 15:26:15 2002 EZZ9600I SNTP server ready
Tue Apr 2 15:28:15 2002 Sending NTP message to multicast address 224.0.1.1
Tue Apr 2 15:30:15 2002 Sending NTP message to multicast address 224.0.1.1