Question & Answer
Question
Cause
Answer
A basic /etc/ntp.conf file on AIX
server 10.1.1.5 prefer
server 10.1.1.6
driftfile /etc/ntp.drift
tracefile /etc/ntp.trace
Start xntpd
# startsrc -s xntpd
# lssrc -s xntpd
Inoperative
Why did xntpd not start?
Check when the server was last rebooted.
# who -b
Compare these filesets to when they were last updated to the last time the server was rebooted.
# lslpp -hac bos.mp64
# lslpp -hac bos.net.tcp.client
# lslpp -hac bos.net.tcp.ntpd
3) The xntpd daemon started but terminated a few minutes later.
Remove the broadcastclient directive from the file.
It is recommended to use the server directive.
Stop and restart xntpd. Wait approximately 6 - 10 minutes for xntpd to stabilize and sync to the NTP server.
4) The time differential between AIX client's clock and the NTP server's clock is 1000 seconds or greater.
Check the clock offset between the client and the server. The xntpd daemon can terminate when the clock differential is 1000 seconds or greater.
Run the ntpdate command to check the clock offset.
# ntpdate -d ntp_server1
# ntpdate -d ntp_server2
The offset is the last line of output.
5) The xntpd permissions are incorrect.
Here are the correct permissions for NTP v3.
# ls -l /usr/sbin/xntpd
lrwxrwxrwx 1 root system 20 May 16 2019 /usr/sbin/xntpd -> /usr/sbin/ntp3/xntpd
# ls -l /usr/sbin/ntp3/xntpd
-r-xr-xr-- 1 root system 320208 Nov 5 2019 /usr/sbin/ntp3/xntpd
SUPPORT:
If more assistance is required follow the step-by-step instructions to contact IBM to open a case for software under warranty or with an active and valid support contract.
a. Document and or take screenshots of all symptoms and error messages
b. Capture any logs or data relevant to the situation.
c. Contact IBM to open a case:
-For electronic support, visit the IBM Support Community:
https://www.ibm.com/mysupport
-If you require telephone support, visit the web page:
https://www.ibm.com/planetwide/
d. Provide a good description of your issue and reference this technote
e. Upload all of the details and data to your case
-You can attach files to your case in the IBM Support Community
-Or Upload data to IBM testcase server analysis:
http://www.ibm.com/support/docview.wss?uid=ibm10733581
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Modified date:
17 December 2021
UID
ibm16488653