Computer Networking

Hello Friend,
I want to learn the fundamentals of networking which course is right for me as a beginner for free?
Networking is really helpful for penetration testing, so I’m eager to do it please guide me on this path.
Thank You.

Hello there friend,
I will e glad to teach you some networking
When do you think we should start my dear friend
Thank you!

Thank you, friend,
May I ask what you studied for Networking?