Jul 06, 2017 · For Debian or Ubuntu, that would be this command: sudo apt-get install ntp. For Redhat or CentOS, you’ll need to use these commands to install ntp and enable it: yum install ntp. systemctl enable ntpd. Then you’ll want to edit the /etc/ntp.conf file, which is quite possibly already filled out for you. vi /etc/ntp.conf..
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