I have a .ovpn file with my VPN config - it works fine when I do
sudo openvpn --config ~jrg/Documents/vpn-config.ovpn
in the terminal, but I'd like to use Network Manager. How can I do this?
First, install the OpenVPN Network Manager plugin:
Open Network Manager, select the VPN tab, then click "Import". Navigate to your .ovpn file (~jrg/Documents/vpn-config.ovpn). If it doesn't automatically find your certificates/keys (the paths of which are found in the .ovpn file), you can select them here, or make any other small changes.
One other thing that may save you some headache down the road is to click IPv4 Settings, then change the method to "Automatic (VPN) Addresses Only". When kept at the default, this will cause ALL internet traffic to go over the VPN, regardless of your .ovpn settings. Here you can also set the DNS server and search domains to use while connected.
When you aren't given an user certificate, you must select the 'Password' type in the authentication drop down. Then in advanced, in 'TLS Authentication' add the TLS .key file and set the direction accordingly (1 or 0, that should be set in the .ovpn file).