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It seems like both distributions in the current 'immutable distributions' category are moving beyond the immutable branding. Fedora: > Thirdly, this nice branding term is also a more accurate way of talking about how rpm-ostree works. Fedora Atomic spins are not actually immutable. There are ways to get around the read-only aspects of the implementation even though it is much harder. The nature of the OS, where updates are only implemented when they successfully build and you can rollback or rebase between core host systems, is better described by atomicity than immutability. Atomic is also how many of the contributors who work on rpm-ostree prefer to talk about it! Rebranding provides an opportunity to change the language surrounding this technology. Nix: > NixOS also provides atomic updates; (Directly from Privacy Guides) It's a minor change, but I feel it'd be helpful for the community to be utilizing consistent terminology for different technologies being utilized. Co-authored-by: Jonah Aragon <jonah@privacyguides.org> Signed-off-by: Daniel Gray <dngray@privacyguides.org>
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| Desktop/PC | simple/linux | Linux distributions are commonly recommended for privacy protection and software freedom. | desktop.webp |
Linux distributions are commonly recommended for privacy protection and software freedom. If you don't already use Linux, below are some distributions we suggest trying out, as well as some general privacy and security improvement tips that are applicable to many Linux distributions.
Traditional Distributions
Fedora Workstation
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Fedora Workstation is our recommended distribution for people new to Linux. Fedora generally adopts newer technologies before other distributions e.g., Wayland, PipeWire. These new technologies often come with improvements in security, privacy, and usability in general.
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Fedora has a semi-rolling release cycle. While some packages like GNOME are frozen until the next Fedora release, most packages (including the kernel) are updated frequently throughout the lifespan of the release. Each Fedora release is supported for one year, with a new version released every 6 months.
openSUSE Tumbleweed
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openSUSE Tumbleweed is a stable rolling release distribution.
openSUSE Tumbleweed has a transactional update system that uses Btrfs and Snapper to ensure that snapshots can be rolled back should there be a problem.
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Tumbleweed follows a rolling release model where each update is released as a snapshot of the distribution. When you upgrade your system, a new snapshot is downloaded. Each snapshot is run through a series of automated tests by openQA to ensure its quality.
Arch Linux
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Arch Linux is a lightweight, do-it-yourself (DIY) distribution meaning that you only get what you install. For more information see their FAQ.
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Arch Linux has a rolling release cycle. There is no fixed release schedule and packages are updated very frequently.
Being a DIY distribution, you are expected to set up and maintain your system on your own. Arch has an official installer to make the installation process a little easier.
A large portion of Arch Linux’s packages are reproducible.
Atomic Distributions
Atomic distributions (sometimes also referred to as immutable distributions) are operating systems which handle package installation and updates by layering changes atop your core system image, rather than by directly modifying the system. This has advantages including increased stability and the ability to easily rollback updates. See Traditional vs. Atomic Updates for more info.
Fedora Atomic Desktops
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Fedora Atomic Desktops are variants of Fedora which use the rpm-ostree package manager and have a strong focus on containerized workflows and Flatpak for desktop applications. All of these variants follow the same release schedule as Fedora Workstation, benefiting from the same fast updates and staying very close to upstream.
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The Fedora Atomic Desktops come in a variety of flavors depending on the desktop environment you prefer, such as Fedora Silverblue (which comes with GNOME), Fedora Kinoite, (which comes with KDE), Fedora Sway Atomic, or Fedora Budgie Atomic. However, we don't recommend the last of these as the Budgie desktop environment still requires X11.
These operating systems differ from Fedora Workstation as they replace the DNF package manager with a much more advanced alternative called rpm-ostree. The rpm-ostree package manager works by downloading a base image for the system, then overlaying packages over it in a git-like commit tree. When the system is updated, a new base image is downloaded and the overlays will be applied to that new image.
After the update is complete you will reboot the system into the new deployment. rpm-ostree keeps two deployments of the system so that you can easily rollback if something breaks in the new deployment. There is also the option to pin more deployments as needed.
Flatpak is the primary package installation method on these distributions, as rpm-ostree is only meant to overlay packages that cannot stay inside of a container on top of the base image.
As an alternative to Flatpaks, there is the option of Toolbox to create Podman containers with a shared home directory with the host operating system and mimic a traditional Fedora environment, which is a useful feature for the discerning developer.
NixOS
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NixOS is an independent distribution based on the Nix package manager with a focus on reproducibility and reliability.
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NixOS’s package manager keeps every version of every package in a different folder in the Nix store. Due to this you can have different versions of the same package installed on your system. After the package contents have been written to the folder, the folder is made read-only.
NixOS also provides atomic updates; first it downloads (or builds) the packages and files for the new system generation and then switches to it. There are different ways to switch to a new generation; you can tell NixOS to activate it after reboot or you can switch to it at runtime. You can also test the new generation by switching to it at runtime, but not setting it as the current system generation. If something in the update process breaks, you can just reboot and automatically and return to a working version of your system.
Nix the package manager uses a purely functional language - which is also called Nix - to define packages.
Nixpkgs (the main source of packages) are contained in a single GitHub repository. You can also define your own packages in the same language and then easily include them in your config.
Nix is a source-based package manager; if there’s no pre-built available in the binary cache, Nix will just build the package from source using its definition. It builds each package in a sandboxed pure environment, which is as independent of the host system as possible, thus making binaries reproducible.
Anonymity-Focused Distributions
Whonix
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Whonix is based on Kicksecure, a security-focused fork of Debian. It aims to provide privacy, security, and anonymity on the internet. Whonix is best used in conjunction with Qubes OS.
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Whonix is meant to run as two virtual machines: a “Workstation” and a Tor “Gateway.” All communications from the Workstation must go through the Tor gateway. This means that even if the Workstation is compromised by malware of some kind, the true IP address remains hidden.
Some of its features include Tor Stream Isolation, keystroke anonymization, encrypted swap, and a hardened memory allocator. Future versions of Whonix will likely include full system AppArmor policies and a sandbox app launcher to fully confine all processes on the system.
Whonix is best used in conjunction with Qubes. We have a recommended guide on configuring Whonix in conjunction with a VPN ProxyVM in Qubes to hide your Tor activities from your ISP.
Tails
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Tails is a live operating system based on Debian that routes all communications through Tor, which can boot on on almost any computer from a DVD, USB stick, or SD card installation. It uses Tor to preserve privacy and anonymity while circumventing censorship, and it leaves no trace of itself on the computer it is used on after it is powered off.
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Tails is great for counter forensics due to amnesia (meaning nothing is written to the disk); however, it is not a hardened distribution like Whonix. It lacks many anonymity and security features that Whonix has and gets updated much less often (only once every six weeks). A Tails system that is compromised by malware may potentially bypass the transparent proxy allowing for the user to be deanonymized.
Tails includes uBlock Origin in Tor Browser by default, which may potentially make it easier for adversaries to fingerprint Tails users. Whonix virtual machines may be more leak-proof, however they are not amnesic, meaning data may be recovered from your storage device.
By design, Tails is meant to completely reset itself after each reboot. Encrypted persistent storage can be configured to store some data between reboots.
Security-focused Distributions
Qubes OS
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Qubes OS is an open-source operating system designed to provide strong security for desktop computing through secure virtual machines (or "qubes"). Qubes is based on Xen, the X Window System, and Linux. It can run most Linux applications and use most of the Linux drivers.
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Qubes OS secures the computer by isolating subsystems (e.g., networking, USB, etc.) and applications in separate qubes. Should one part of the system be compromised, the extra isolation is likely to protect the rest of the qubes and the core system.
For further information about how Qubes works, read our full Qubes OS overview page.
Kicksecure
While we recommend against "perpetually outdated" distributions like Debian for Desktop use in most cases, Kicksecure is a Debian-based operating system which has been hardened to be much more than a typical Linux install.
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Kicksecure—in oversimplified terms—is a set of scripts, configurations, and packages that substantially reduce the attack surface of Debian. It covers a lot of privacy and hardening recommendations by default. It also serves as the base OS for Whonix.
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Criteria
Choosing a Linux distro that is right for you will come down to a huge variety of personal preferences, and this page is not meant to be an exhaustive list of every viable distribution. Our Linux overview page has some advice on choosing a distro in more detail. The distros on this page do all generally follow the guidelines we covered there, and all meet these standards:
- Free and open source.
- Receives regular software and kernel updates.
- Avoids X11.
- The notable exception here is Qubes, but the isolation issues which X11 typically has are avoided by virtualization. This isolation only applies to apps running in different qubes (virtual machines), apps running in the same qube are not protected from each other.
- Supports full-disk encryption during installation.
- Doesn't freeze regular releases for more than 1 year.
- We recommend against "Long Term Support" or "stable" distro releases for desktop usage.
- Supports a wide variety of hardware.
- Preference towards larger projects.
- Maintaining an operating system is a major challenge, and smaller projects have a tendency to make more avoidable mistakes, or delay critical updates (or worse, disappear entirely). We lean towards projects which will likely be around 10 years from now (whether that's due to corporate backing or very significant community support), and away from projects which are hand-built or have a small number of maintainers.
In addition, our standard criteria for recommended projects still applies. Please note we are not affiliated with any of the projects we recommend.