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Regarding your question about GINA - I assume you intend to make it possible to log on to a network domain controller or some similar login system over an OpenVPN connection. So basically to have the OpenVPN connection up and running BEFORE the user has logged on. If you want to do that, I suggest you install the open source client, and use an autologin profile with that. Install that in your system and enable the system service that OpenVPN installs - it's disabled by default. What that does is start up before the user has logged on, and load any autologin profiles that are in the config subfolders of the OpenVPN installation, and connect with that. Since it's autologin, it will connect without requiring credentials.