Anyone is free to use the Powerpoint presentations, lecture notes, and projects I put on these Web pages any way you want to. I am happy to help people learn or teach about computer networking.
If you find errors in the materials, especially the projects, please let me know via email to firstname.lastname@example.org. I am constantly revising the projects, but I never manage to get all the errors out and keep up with all the changes.
Please be careful to do the hacking projects only on machines that you own, or that you are authorized to use for that purpose. Hacking into machines without permission is a crime! I don't encourage crime, and if you commit crimes, I won't be able to save you!