Linux Server Time Calibration method

2. First install NTP:

   1 Yum Install -y ntpdate

   Then execute the NTP command:

   1 time. windows.com

   Or:

   1 ntpdate cn.pool.ntp.org

   If you want to be lazy and let the machine automatically calibrate the time, just add the command to cron.

   1 crontab-e2 * */1 * * */sbin/ntpdate cn.pool.ntp.org #每隔一个小时同步一次

   Save to exit.

4. The server uses NTP update time, often involved in UTC whether the open problem, the time will be open for 8 hours
   Before the following command, a command resolves all previous issues.
   
   

   1   -S STDTIME.GOV.HK

   Use Rdate to fetch the time of the STDTIME.GOV.HK server back and then write the hardware
   
   

   1   Hwclock-W

   
   
   The following is a description of how rdate commands are used
   
   Feature Description: Displays the date and time of the other host.
   Syntax: rdate [-ps][host name or IP address ...]
   Additional instructions: Execute the rdate instruction, ask the other host for the system time and display it.
   Parameters
   -P Displays the date and time of the remote host.
   -S returns the date and time received from the remote host to the local host's system time.

Linux Server Time Calibration method