Administration

• 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.

• 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.

• Docker Compose for container management

  01/04/2024

  Having explored the fundamentals of Docker and its power to deploy encapsulated applications, we now delve into the domain of Docker Compose, an essential tool for managing applications composed of multiple containers.

• 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.