We do, however, recommend upgrading to the official CLI where possible.

If required, you can manually setup Proton VPN on headless systems using OpenVPN or IKEv2. The official CLI does not yet support split tunneling, and does not work on headless systems. This can be useful for defeating censorship. It uses OpenVPN UDP by default, but OpenVPN TCP mode is available. Our new client is completely integrated with NetworkManager. Once our repository has been added to your system’s software sources (see install instructions below), the CLI will be kept updated by your default package manager. It features DNS leak protection and IPv6 leak protection, and will automatically re-establish the VPN connection when you switch networks (for example when moving between office and home WiFi networks, or when you suspend and resume your laptop session). The new tool is currently available for most Debian-based systems, such as Debian itself (10+), Ubuntu (18.04+), Mint, and Kali, as well as Fedora 33+ and Archlinux / Manjaro. And because the CLI minimizes the need to execute code with privileged access, no sudo rights are required. It also improves security, allowing us, for example, to properly embed an always-on kill switch into the codebase. Its streamlined code improves stability and performance and provides a firm foundation for future developments. Our new Linux CLI has been rebuilt from the ground up. If you are currently using Proton VPN for Linux Version 2.0, we recommend that you upgrade to the new official client (there are a small number of use cases where this may not be desirable, which we detail below). This new CLI was produced in-house over several months, allowing us to completely rewrite the code with a focus on improved security. Proton VPN is now pleased to announce a new, official command-line Linux tool developed by the Proton VPN team. You can get Proton VPN for free on Linux for your preferred distro. Thanks to our highly engaged user community, we have been able to offer a community-sourced Linux tool for the last two years, which has allowed Linux users to secure their internet connections with Proton VPN. Please see How to use Proton VPN on Linux for a full guide on using Proton VPN on Linux systems.

We now also offer an official Linux app with graphical user interface. July 2021: This article has been updated because the official Linux CLI tool is now a stable release.

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