http://owlzyj4to3l5daq6edgsgp5z4lh4tzlnms4z6jv6xdtkily77j4b3byd.onion/beginner-guides/openvpn.html
To test a connection, simply run: sudo openvpn --config client_file.ovpn . Open Network Manager, go to VPN Connections, Configure VPN, VPN tab, and then Import. Choose the desired .ovpn server file. Enter the username and password if necessary.