So you want to know how to install and configure NTP on you CentOS Fedora Linux server to synchronize the system clock? You can easily install NTP (Network Time Protocol, a means of transmitting time signals over a computer network) using yum command with Redhat, CentOS or Fedora core Linux.
#1- Login as the root user (duh)
the follow these command to install NTP
[php]# yum install ntp[/php]
[php]# chkconfig ntpd on[/php]
[php]# ntpdate pool.ntp.org[/php]
[php]# /etc/init.d/ntpd start[/php]
Of for a full list of NTP servers