Copyright Notice#

© 2026 Christian Adell Querol. All rights reserved.

The content on this site, including text, diagrams, and examples, is the intellectual property of the author under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).

You are free to

• Share — copy and redistribute the material in any medium or format, with proper attribution

Under the following restrictions:

• Attribution — You must give appropriate credit to Christian Adell Querol, provide a link to the license, and indicate if changes were made.
• NonCommercial — You may not use the material for commercial purposes.
• NoDerivatives — You may not remix, transform, or build upon the material for distribution.

Important Notes

• Translations require prior written permission from the copyright holder
• Commercial use requires a separate license agreement
• Derivative works are not permitted without explicit permission

For permissions beyond this license, please contact the author through the email chadellgmailcom.

Acknowledgements#

This work has been enriched by the contributions of many people who have generously shared their time and expertise.

Reviews

(TBD)

Translations

This book is available in multiple languages. All translations were produced using AI-assisted tools for the initial pass and then reviewed by human contributors who are native speakers with network engineering backgrounds. Their work ensures that the technical content is accurate and that the language reads naturally for each audience.

If you would like to contribute a review or correction to any translation, please contact the author at chadellgmailcom.