Linux Magazine, Issue 299 (October 2025)

Security is the focus of the cover story in Linux Magazine Issue 299: how to use the Linux kernel auditing system to watch critical files and system calls, then examine the activity it records. The issue builds out from that practical starting point with tools, techniques, and open-source projects for readers who like to understand what their Linux systems are doing—and how to work with them more effectively.

Trace activity, investigate threats

The security coverage pairs kernel auditing with hands-on articles about strace and Falco. Readers encounter one approach for investigating how applications interact with the kernel, and another for creating rules that help detect potentially suspicious system events. Together, these topics offer a useful perspective on observing system behavior, whether the goal is troubleshooting or security monitoring.

Useful command-line and data skills

CSV files, file operations, and reproducible development environments all get attention. The issue explores tools for handling troublesome comma-separated data, compares Linux commands for moving and renaming files, and looks at how Nix flakes organize project definitions and dependencies. These are practical subjects with a shared theme: choosing the right tool can make everyday work clearer and more manageable.

From wireless mesh to desktop audio

Networking and multimedia are also in the mix. An introduction to Meshtastic covers off-grid wireless mesh communication using LoRa devices, while the PipeWire feature explains its role in handling audio applications associated with ALSA, JACK, and PulseAudio. Elsewhere, articles consider Linux distributions, kernel news, and developments across the open-source landscape.

Build, tinker, and explore

The maker and programming stories range from block-based microcontroller work with PictoBlox to a Python chat client-server example using sockets and multithreading. A feature on Commodore OS Vision 3 connects Linux with retro-computing hardware and emulators. The issue also includes a Koel tutorial for readers interested in running a personal music-streaming server.

A varied read for Linux users

With security at its center and practical coverage spanning administration, coding, networking, audio, and maker projects, this October 2025 issue offers several distinct entry points for curious Linux readers. Choose a topic you already work with, or use the breadth of the issue to discover a tool or corner of open source worth exploring next.