- Proton VPN’s Stealth protocol is now available in beta for Linux GUI users
- The obfuscation feature disguises VPN traffic to better evade censorship
- It is currently supported on Debian, Ubuntu, and Fedora distros
In a major win for open-source enthusiasts, Proton VPN has officially launched its proprietary Stealth protocol in beta for Linux. Known for being one of the best VPN services on the market, the Swiss provider is continuing its push to bring the Linux experience up to par with its Windows and Mac counterparts.
Announced on its official Reddit account, the release introduces powerful obfuscation capabilities to the platform. In simple terms, the Stealth protocol makes your VPN connection look like regular, unencrypted internet traffic, allowing you to bypass aggressive internet blocks and firewalls in highly censored regions.
Speaking directly to TechRadar, the Proton VPN team confirmed the rollout, noting the strong demand from the open-source community. “Our Linux community has been vocal about their desire to receive Stealth protocol support, and we’re pleased to now make this a reality,” a Proton spokesperson said.
Being a beta release means that users may encounter instability and bugs. That’s why Proton encourages users to report any issues. “We welcome as much user feedback as possible,” Proton told TechRadar.
Proton also confirms that Stealth is only available on the Debian, Ubuntu, and Fedora distros at the moment, with more coming by the end of the summer. If you are looking to test the feature today, it is worth noting that it is currently limited to the Proton VPN Linux GUI (graphical user interface) app.
Flying under the radar: Why Stealth matters for Linux
Authoritarian governments, restrictive internet service providers (ISPs), and strict workplace network administrators frequently use a technique called Deep Packet Inspection (DPI) to detect and block VPN traffic.
Standard VPN protocols, like OpenVPN and WireGuard, have distinct cryptographic signatures. Even if your data is securely encrypted, DPI can analyze the metadata of your connection, spot those signatures, and immediately cut your access to the broader web.
Obfuscated servers, like those utilized by Proton’s Stealth protocol, strip away this identifying metadata. By wrapping the connection to make it look like standard HTTPS web traffic, Stealth effectively hides the fact that you are using a VPN in the first place.
As Proton notes, “Linux users now have an effective, straightforward way to disguise their VPN traffic. The Stealth protocol helps avoid Deep Packet Inspection, and makes it harder for a VPN to be detected and blocked.”
Stealth protocol is now available in beta on Linux
from r/ProtonVPN
The Stealth beta release is part of a much broader strategy to revamp Proton’s offerings for Linux.
Over the past year, we have seen the provider promise a complete Linux makeover, bringing parity across its desktop clients. Since then, the company has delivered official one-click installs to the Snap store, introduced better stability updates, and most recently, expanded its capabilities with a new split-tunneling feature.
Bringing Stealth to Linux fulfills one of the major promises Proton made earlier this year. It also reaffirms that users running open-source operating systems aren’t left behind when it comes to vital anti-censorship tools.
While CLI (Command Line Interface) users will have to wait a little longer, this GUI beta is a massive step forward for digital freedom.
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