Procedure: Setup NTPD on CentOS Linux
Open the terminal or login over the ssh session. You must login as as the root user. Type the following yum command to install ntp
# yum install ntp ntpdate ntp-doc
Turn on service, enter:
# chkconfig ntpd on
Synchronize the system clock with 0.pool.ntp.org server (use this command only once or as required):
# ntpdate pool.ntp.org
Start the NTP server. The following will continuously adjusts system time from upstream NTP server. No need to run ntpdate:
# /etc/init.d/ntpd start
Configure ntpd (optional)
Edit /etc/ntp.conf, enter:
# vi /etc/ntp.conf
To set your timezone –
There are a bunch of files stored by region in the following directory:
/usr/share/zoneinfo
Take a look and find the one which matches your region. Then you have to create a symlink from /etc/localtime:
sudo rm /etc/localtime
sudo ln -s /usr/share/zoneinfo/Europe/London /etc/localtime