Hello guys! I have a question and I hope you will help me to solve it out. I'm studying computer network/system administration at the moment, I'm finishing studies this year. Studies gave me only the basics that I need - It's not enough. I want to go forward! What should I study? I decided I want to learn how to protect/diagnose my network - I started to learn python. While learning python friend told me that I should learn Scapy.... OKAY .... And all the time the same: whenever I start to learn something someone tells me THERE'S A BETTER OPTION AND YOU'RE JUST WASTING YOUR TIME.... What should I study to learn how to protect/diagnose network? To be a good system administrator?