CentOS Linux install and configure NTP to synchronize the system clock

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Q. How do I install and configure NTP under CentOS Linux 5 server to synchronize the system clock?

A. You can easily install NTP (Network Time Protocol, a means of transmitting time signals over a computer network) using yum command under Redhat or CentOS/Fedora core Linux.


Login as the root user

Type the following command to install ntp
# yum install ntp
Turn on service
# chkconfig ntpd on
Synchronize the system clock with 0.pool.ntp.org server:
# ntpdate pool.ntp.org
Start the NTP:
# /etc/init.d/ntpd start

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