Hacker’s Manual 2023

Linux is more than a desktop operating system: it is a kernel to explore, a toolkit for managing systems, and a platform where security and privacy matter. Hacker’s Manual 2023 brings those threads together in a practical, magazine-style collection of tutorials and features, from Linux fundamentals to terminal skills and security tools.

Start with Linux’s building blocks

The opening section looks at Ubuntu 22.04, the history and inner workings of the Linux kernel, and the process of building a kernel. It also covers Rescatux, a Linux-based repair system. These articles offer several ways into the subject, whether you are curious about how Linux developed or want to understand more of what happens beneath the desktop.

Security, privacy and recovery

Security-focused features discuss privacy threats, Kali Linux, secure chat clients, locking down Linux systems, recovering data and managing GnuPG keys. The emphasis spans both understanding security tools and taking steps to protect systems and information.

Explore the Linux toolkit

Other tutorials introduce software and system topics including OpenELEC, VirtualBox, NextCloud and Nagios. Readers can also explore Linux on a tablet, multi-booting with GRUB, building a custom Ubuntu distribution, monitoring applications with LTTng, and carrying multiple distributions on a USB drive.

Get more comfortable at the terminal

A dedicated reference section covers command-line basics, files and folders, configuration files, system information, drive partitions, remote access, display control and core commands. It offers a useful place to turn when the terminal feels unfamiliar—or when you want to build a broader command-line vocabulary.

For curious Linux users

With its mix of introductory explanations, hands-on topics and reference material, this edition will interest Linux learners and enthusiasts who want to understand their systems, try new tools and strengthen their administration and security knowledge. Its 2023 examples also provide a snapshot of the software and Linux landscape covered in that edition.