Computer Networking (Deepdive)

2023-01-01

[public] 27.1K views, 6.23K likes, dislikes audio only

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In this video I try to explain computer networking with pieces of paper. This hopefully explains why in some universities the OSi layer model is taught. While I find the OSI model kinda useless, "thinking in layers" is extremely important. Blackboxes of layers allow us to focus on what matters, and ignore anything else.

HTTP Desync Attack Explained With Paper: https://www.youtube.com/watch?v=dnyL7EKbRRk

HTTP Request Smuggling - False Positives: https://www.youtube.com/watch?v=7wq2e2nxa38

Chapters:

00:00 - Intro

00:42 - Send Data Between Computers (Physical Layer)

01:31 - Find The Correct Computers (IP Layer)

04:24 - Identify The Target Program (TCP Layer)

06:40 - Think in Blackboxes!

07:24 - TCP Layer Blackbox

08:32 - Linux Kernel Implementing The Layers

09:54 - netcat Example

10:30 - Looking at Packet with Wireshark

11:04 - Layers are Everywhere (Phone Call)

11:49 - Hacking with Blackboxes

13:11 - Outro

13:28 - LiveOverfont Ad

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