Required cybersecurity skills: Understanding basic network concepts

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In this video, I go back to basics. I get asked ALL the time where to start in cybersecurity. It's crucial to understand how networks work at a fundamental level. This is a required cybersecurity skill: Understanding basic networking concepts If you don't know how computers are supposed to communicate with each other, how do you know when they're doing it in a malicious way or how you can exploit vulnerabilities? The OSI stack is the model modern networks use, and /"understanding/" it is of utmost importance. I'll go through OSI and give practical examples. Then I'll show you how to use Wireshark to visualize network traffic. This week is less about cybersecurity, but it's just as important to your career.

TIME STAMP:
1:40 Why it is important to understand networks
3:48 OSI model
5:01 Transport layer
10:38 Network layer
17:18 Data link layer
22:54 RFC 1918 non-routable IP
28:34 Using Wireshark to visualize network traffic
34:26 A cool thing: Podcast on the headlines on cybersecurity

SHOW LINKS
Wireshark: https://www.wireshark.org/
OSI model: https://en.wikipedia.org/wiki/OSI_model
One cool thing: Cybersecurity headlines: https://cisoseries.com/subscribe-podcast/

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