Thomas Eizinger 166b0d1573 feat(linux): compute device ID from /etc/machine-id (#10805)
All of our Linux applications have a soft-dependency on systemd. That
is, in the default configuration, we expect systemd to be present on the
machine. The only exception here are the docker containers for Headless
Client and Gateway.

For the GUI client in particular, systemd is a hard-dependency in order
to control DNS on the system which we do via `systemd-resolved`. To
secure the communication between the GUI client and its tunnel process,
we automatically create a group called `firezone-client` to which the
user gets added. All members of the group are allowed to access the unix
socket which is used for IPC between the two processes. Membership in
this group is also a prerequisite for accessing any of the configuration
files.

On the first launch of the GUI client on a Linux system, this presents a
problem. For group membership changes to take the effect, the user needs
to reboot. We say that in the documentation but it is unclear whether
all users will read that thoroughly enough. To help the user, the GUI
client checks for membership of the current user in the group and alerts
the user via a dialog box if that isn't the case. This would all be fine
if it would actually work. Unfortunately, that check ends up being too
late in the process. If we aren't a member of the group, we cannot read
the device ID and bail early, thus never reaching the check and
terminating the process without any dialog box or user-visible error.

We could attempt to fix this by shuffling around some of the startup
init code. That is a sub-optimal solution however because it a) may get
broken again in the future and b) it means we have to delay
initialisation of telemetry until a much later point.

Given that this is only a problem on Linux, a better solution is to
simply not rely on the disk-based device ID at all. Instead, we can
integrate with systemd and deterministically derive a device ID from the
unique machine ID and a randomly chosen "app ID".

For backwards-compatibility reasons, the disk-based device ID is still
prioritised. For all new installs however, we will use the one based on
`/etc/machine-id`.
2025-11-10 02:29:52 +00:00

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A modern alternative to legacy VPNs.


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Overview

Firezone is an open source platform to securely manage remote access for any-sized organization. Unlike most VPNs, Firezone takes a granular, least-privileged approach to access management with group-based policies that control access to individual applications, entire subnets, and everything in between.

architecture

Features

Firezone is:

  • Fast: Built on WireGuard® to be 3-4 times faster than OpenVPN.
  • Scalable: Deploy two or more gateways for automatic load balancing and failover.
  • Private: Peer-to-peer, end-to-end encrypted tunnels prevent packets from routing through our infrastructure.
  • Secure: Zero attack surface thanks to Firezone's holepunching tech which establishes tunnels on-the-fly at the time of access.
  • Open: Our entire product is open-source, allowing anyone to audit the codebase.
  • Flexible: Authenticate users via email, Google Workspace, Okta, Entra ID, or OIDC and sync users and groups automatically.
  • Simple: Deploy gateways and configure access in minutes with a snappy admin UI.

Firezone is not:

  • A tool for creating bi-directional mesh networks
  • A full-featured router or firewall
  • An IPSec or OpenVPN server

Contents of this repository

This is a monorepo containing the full Firezone product, marketing website, and product documentation, organized as follows:

Quickstart

The quickest way to get started with Firezone is to sign up for an account at https://app.firezone.dev/sign_up.

Once you've signed up, follow the instructions in the welcome email to get started.

Frequently asked questions (FAQ)

Can I self-host Firezone?

Our license won't stop you from self-hosting the entire Firezone product top to bottom, but our internal APIs are changing rapidly so we can't meaningfully support self-hosting Firezone in production at this time.

If you're feeling especially adventurous and want to self-host Firezone for educational or hobby purposes, follow the instructions to spin up a local development environment in CONTRIBUTING.md.

The latest published clients (on App Stores and on releases) are only guaranteed to work with the managed version of Firezone and may not work with a self-hosted portal built from this repository. This is because Apple and Google can sometimes delay updates to their app stores, and so the latest published version may not be compatible with the tip of main from this repository.

Therefore, if you're experimenting with self-hosting Firezone, you will probably want to use clients you build and distribute yourself as well.

See the READMEs in the following directories for more information on building each client:

How long will 0.7 be supported until?

Firezone 0.7 is currently end-of-life and has stopped receiving updates as of January 31st, 2024. It will continue to be available indefinitely from the legacy branch of this repo under the Apache 2.0 license.

How much does it cost?

We offer flexible per-seat monthly and annual plans for the cloud-managed version of Firezone, with optional invoicing for larger organizations. See our pricing page for more details.

Those experimenting with self-hosting can use Firezone for free without feature or seat limitations, but we can't provide support for self-hosted installations at this time.

Documentation

Additional documentation on general usage, troubleshooting, and configuration can be found at https://www.firezone.dev/kb.

Get Help

If you're looking for help installing, configuring, or using Firezone, check our community support options:

  1. Discussion Forums: Ask questions, report bugs, and suggest features.
  2. Join our Discord Server: Join live discussions, meet other users, and chat with the Firezone team.
  3. Open a PR: Contribute a bugfix or make a contribution to Firezone.

If you need help deploying or maintaining Firezone for your business, consider contacting our sales team to speak with a Firezone expert.

See all support options on our main support page.

Star History

Star History Chart

Developing and Contributing

See CONTRIBUTING.md.

Security

See SECURITY.md.

License

Portions of this software are licensed as follows:

  • All content residing under the "elixir/" directory of this repository, if that directory exists, is licensed under the "Elastic License 2.0" license defined in "elixir/LICENSE".
  • All third party components incorporated into the Firezone Software are licensed under the original license provided by the owner of the applicable component.
  • Content outside of the above mentioned directories or restrictions above is available under the "Apache 2.0 License" license as defined in "LICENSE".

WireGuard® is a registered trademark of Jason A. Donenfeld.

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