1.Log in to the operating system as the root user.
2.Run the following command to access the YaST2 Control Center window.
# yast2
3.In the YaST2 Control Center window, choose System and click Data and Time.
4.On the Clock and Time Zone page, click Change.
5.In the window that is displayed, select Synchronize with NTP Server and enter the NTP server IP address in the NTP Server Address text box.
6.Click Synchronize now to synchronize the time on the NTP client with that on the NTP server.
7.Click Accept to start to configure the NTP client.
8.After the NTP client configuration is complete, click OK.