All presentations and iptables examples used in this course are available as a GDrive Shared Directory.
You can access the course resources here: https://drive.google.com/drive/folders/1XBaDrlnDS5TBZek6ZzSWAbTwyyP-5zmD?usp=sharing
The best way to learn is to write every command and piece of code by yourself so I encourage you to do it and if you get stuck check it with my examples.
Many scripts are ready to be used in your Network Environment with no or very few changes.
I'll constantly update this shared directory with new scripts of other updates.