Systemctl enabling of OpenVPN

1. config file is in /etc/openvpn

sudo systemctl start/stop/status/enable/disable openvpn@[config]

2. config file is in /etc/openvpn/client

sudo systemctl start/stop/status/enable/disable openvpn-client@[config]

3. config file is in /etc/openvpn/server

sudo systemctl start/stop/status/enable/disable openvpn-server@[config]

extension of config should be .conf not .ovpn