1. Add system level scheduled tasks to synchronize every 5 minutes:
#vi /etc/crontab
*/5 * * * * /usr/sbin/ntpdate Time Source server IP; /usr/sbin/hwclock -w
Note: In my actual environment, all server time sources are primary domain controller DCs, which benefits all clients and all AD-based The verified system time is synchronized.
2, start the scheduled task:
#service crond start
3, add the scheduled task to the boot project:
#chkconfig crond on< Br>
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