Firejail
Firejail is an open source SUID sandbox program for Linux. It uses Linux namespaces and seccomp-bpf to restrict the running environment of untrusted applications. Firejail aims to provide easy-to-use application sandboxing on Linux, allowing untrusted applications to run safely w
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Firejail: Open Source SUID Sandbox for Linux
Firejail is an open source SUID sandbox program for Linux. It uses Linux namespaces and seccomp-bpf to restrict the running environment of untrusted applications. Firejail aims to provide easy-to-use application sandboxing on Linux, allowing untrusted applications to run safely while limiting their access to the rest of the system.
What is Firejail?
Firejail is an open source sandbox program for Linux operating systems. It uses security features built into the Linux kernel, such as namespaces and seccomp-bpf filters, to restrict the environment that an application can access.
When an application is launched using Firejail, it is restricted to its own filesystem namespace, limited networking access, and reduced access to other system resources. This prevents untrusted or potentially malicious applications from accessing sensitive parts of the system.
Some key features of Firejail include:
- Filesystem sandboxing - applications can only access their own home directory and whitelisted directories, preventing access to sensitive system files
- Network sandboxing - restricted network access prevents applications from opening unwanted connections
- Seccomp filter support - syscall filtering further locks down what sandboxed processes can do
- X11 sandboxing - X11 access can be constrained to prevent spying on X11 keystrokes and screen grabs
- Profile support - default security profiles for common Linux programs to easily sandbox untrusted apps
- Easy to use - simple command line interface, integrates well with desktop menus
Firejail aims to make Linux application sandboxing easy to use for desktop users. The sandboxing restricts the damage malware or exploits in apps can inflict on a system. It can also mitigate leaky apps from accessing more resources than necessary.
Firejail Features
Features
- Sandboxes Linux applications
- Restricts filesystem access
- Restricts network access
- Whitelist-based access control model
- Easy to use command line interface
- Integrates with common desktop environments
Pricing
- Open Source
Pros
Lightweight and fast
Effective at limiting application access
Simple to configure
Open source and free
Cons
Requires setup per application
Not compatible with all Linux distributions
Some applications may not work properly in sandbox
Official Links
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