NTP: Server Time Sync

To sync time on server , you need ntpdate utility.

On Centos: yum install ntp

On debian: apt-get install ntpdate

So we can sync time with public NTP server: ntpdate pool.ntp.org

Make periodically sync time:

touch /var/log/ntpdate.log crontab -e

and insert:

04 0,8,16 * * * root ntpdate pool.ntp.org >>/var/log/ntpdate.log <Press ENTER>

And save. That's all