yum install ntp
Edit //**/etc/ntp.conf/**// and add the following lines where needed:
server hickory.byu.edu
server dickory.byu.edu
server dock.byu.edu
* //These are the BYU time servers.//
Execute the following:
/sbin/chkconfig –level 2345 ntpd on
* Now ntp will always run on a reboot.
Next do to make sure both are using the BYU servers.
service ntpd status