Do "service ntpd restart" and "ntpdate <ntp-server-ip>" do the same work?

by Shiva J   Last Updated April 10, 2018 12:00 PM

I am often getting a large value in offset when checking using ntpq -p, I am generally restating the ntpd daemon and it fixes the issue. I wanted to know if i can try the ntpdate <ntp-server-name> instead of restarting the ntpd. Since this is a production box wanted to be sure before implementing it. Kindly suggest

Tags : ntp ntpd ntpdate

Answers 1

No. Citing man ntpdate:

ntpdate will decline to set the date if an NTP server daemon (e.g., ntpd) is running on the same host. When running ntpdate on a regular basis from cron as an alternative to running a daemon, doing so once every hour or two will result in precise enough timekeeping to avoid stepping the clock.

April 10, 2018 11:22 AM

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