A quick way to setup ntpd to set the system and hardware clock
On a Redhat system (Redhat, CentOS, Fedora or Oracle Linux) edit the /etc/sysconfig/ntpd file:
- Change:
SYNC_HWCLOCK=no
to
SYNC_HWCLOCK=yes
- Add:
-x to OPTIONS so that the clock will be set every time ntpd is started
OPTIONS=”-u ntp:ntp -p /var/run/ntpd.pid -x”
Now make sure that ntpd is running
/sbin/chkconfig –level 2345 ntpd on
/sbin/service ntpd start