Try starting your ntp manually:

     systemstl start ntpd

You may see an error message referring you to the journal.  Startup scripts
in SystemD are not difficult, but are very different and can be a bit
intimidating until you realize they are no different that what you always
used but in a different order.

If it starts ok but not on boot, your enable command is not working right.
The enable command should create a symlink very similar to the old rc3.d=>
init.d link of old, only the locations are different.  Then on startup, the
system should run that script doing an equivalent of systemctl start on it.

So, try to start it manually and see what happens.

Kevin
On Aug 13, 2014 4:30 PM, "Gilbert T. Gutierrez, Jr." <
mailing-lists@phoenixinternet.net> wrote:

> I am playing with CentOS 7 and have been encountering some difficulties. I
> was wondering if anyone else has attempted to use it or is having problems?
>
> <positive>
> I was able to have the client machine join my Samba 4 windows domain and
> am able to authenticate to it. Yea!
>
> <negatives>
> I cannot get ntp to start at statup. I am always having to manually start
> it. I have run "systemctl enable ntpd.service" which I understand is the
> correct command for systemd to have an application start on boot (it was
> "chkconfig ntpd on" utilizing previous versions).
> There is the problem of applications... I cannot find a rdp client on the
> distro or epel. I found rdesktop on a repository that I have never used
> before and don't know if I trust.
>
> I am thinking about trying Linux Mint (http://www.linuxmint.com/) or
> kubuntu (http://www.kubuntu.org/). I am trying to see if I can operate at
> my office without Windows. I am very comfortable with CentOS versions prior
> to 7 am trying to stay with CentOS because all of my servers are based on
> one version of CentOS or another. I did not like CentOS 6 as a desktop and
> that is why I was trying 7. Debian based distros have always been
> intimidating since I am used to the package management, service calls, and
> locations of files in CentOS.
>
> Gilbert
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