Config time server synchronization
Setup NTPD on CentOS
yum install ntp ntpdate ntp-doc
Turn on service
chkconfig ntpd on
Synchronize the system clock with 0.pool.ntp.org server
ntpdate pool.ntp.org
Start the NTP server
service ntpd start
Configure ntpd (optional)
Edit /etc/ntp.conf
vi /etc/ntp.conf
Set public servers from the pool.ntp.org project:
server 0.rhel.pool.ntp.org
server 1.rhel.pool.ntp.org
server 2.rhel.pool.ntp.org
Restart the NTP server
service ntpd restart
