OpenVPN Security Advisory: Dec 14, 2018
Action needed: Important update for OpenVPN Access Server

Building OpenVPN


OpenVPN can easily be built from source for Linux and BSD variants. Building OpenVPN for Windows is more complex, therefore a pre-built installer is available for Windows on the OpenVPN download site. Instructions for building OpenVPN for Windows are available in the OpenVPN Wiki.

OpenVPN can be built:

OpenVPN can also be linked with the LZO real-time compression library. OpenVPN supports adaptive compression, meaning that it will enable link compression only when the tunnel data stream is found to be compressible.

OpenVPN runs entirely in user space and does not require any special kernel components other than the TUN/TAP virtual network driver available for Windows, Linux, and BSD variants.