Automatically synchronize the date and time of a linux host through network ntp

Automatically synchronize the date and time of a linux host through network ntp

If you only need to synchronize data once, run the following command:

Rdate-s time.nist.gov

WhereTime.nist.govIs a time server, of course, you can also use another time server.

If the time of multiple servers needs to be fully synchronized, it is best to configure a unified automatic synchronization task for these servers to avoid time deviations for various reasons. The method is as follows:

Use crontab to automatically synchronize time in linux
Vi/etc/crontab
Add the following sentence:

00 0 1 ** root rdate-s time.nist.gov

Time.nist.gov is a time server.