[gentoo-user] systemd + openvpn

[Joseph]

How do I start and stop "systemd" services, I would imagine systemd works the same across all distros.
My openvpn server is running on Gentoo but client openvpn I setup on Fedora 21 (as the computer is old and slow).

Normally I would create configuration files in /etc/openvpn/
and run:
/etc/init.d/ln -s openvpn.client1 openvpn
/etc/init.d/openvpn.client1 start

But on Fedora when I do 
systemctl enable openvpn@×××××.service

I get:
Failed to execute operation: No such file or directory.

-- 
Joseph