Gnu

• Linux Log Analysis: journalctl, journald, dmesg and system diagnostics

  01/06/2026

  In the previous article we covered how to identify processes, monitor resource usage, and check whether a service is running. That lets you spot when something is wrong — but there’s still a critical piece missing: understanding why.

• How to manage processes, resources and services in GNU/Linux

  15/04/2026

  In the previous articles of this series, we covered the fundamentals of Linux, how the system is organized and user management, how permissions work, and several commands to work more efficiently.

• Installing and managing software in GNU/Linux

  01/09/2024

  In any operating system, installing, updating, and removing software is a fundamental task. In GNU/Linux, this management is done using packages, which are collections of files installed on your system to provide an application or utility.

• Mastering file permissions in GNU/Linux

  01/06/2024

  In the last chapter, we delved into the depths of GNU/Linux, exploring user management, file system organization, and basic environment configuration. We learned about the importance of the root user, user and group management, and the hierarchical structure of the file system.

• Diving into the depths of GNU/Linux

  15/10/2023

  In the last chapter, we covered the basics of Linux, the most commonly used user-friendly distributions, where to get Ubuntu, and how to boot it on our computer to try it out or install it.

• Getting Started with GNU/Linux

  07/08/2023

  What is Linux? Linux is an open-source operating system, which means its source code is freely available to the public. It was created in 1991 by Linus Torvalds while he was studying at the University of Helsinki.