It uses a custom security protocol that utilizes SSL/TLS for key exchange”. What is OpenVPN?Īccording to Wikipedia: “OpenVPN is an open-source commercial software that implements virtual private network techniques to create secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities. The management interface is a simple PHP web interface that uses a MariaDB as a backend. Since I only use the community edition of OpenVPN, this project gives you access to a neat management interface, from which you can create & manage VPN user accounts, and also allow VPN users to download the files that they need to connect to the VPN. Backgroundīefore the need for extra security via 2-factor authentication came up, I was already using OpenVPN with the help of an excellent open-source project in GitHub which provides a web administration interface ( ). For me, that was a non-starter as all my existing VPN users reside only inside a database. Not only is this plugin difficult to install because of Linux library dependencies, but most importantly it requires a real Unix user for each VPN account you need to setup. Most guides I found on the internet, if not all, talk about using a PAM plugin to extend OpenVPN with 2 Step Authentication. I am writing this article to save you time and effort because this was not straightforward.
I recently set up a VPN with 2-Factor Authentication using the Community Edition of OpenVPN and using Google’s standard authenticator.
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