firejail

This article explores the `firejail` sandboxing tool which enhances Linux security by restricting script syscalls using Linux namespaces and seccomp technology. It explains how restricted syscalls either kill the process or fail, illustrating with a script limited to benign system calls and demonstrating syscall blocking in action.

Firejail is a sandboxing tool for Linux that isolates program environments, enhancing security by restricting unauthorized filesystem access. Ideal for handling untrusted scripts or testing, it uses command prefixes for operation, ensuring scripts only access specific necessary directories. This secures Linux applications efficiently against potential script-related vulnerabilities.