2023-02-17

[public] 13.6K views, 4.78K likes, dislikes audio only

LiveOverflow

What is a secure "tunnel"? When I started to learn about computers the name confused me. I couldn't imagine how it works on a technical level. In this video we build upon knowledge from the previous videos, to develop an intuition for what a tunnel, VPN or proxy is.

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1. Server Explained: /youtube/video/VXmvM2QtuMU

2. Protocol Explained: /youtube/video/d-zn-wv4Di8

3. Computer Networking: /youtube/video/6G14NrjekLQ

Grab the forwarder.py code: https://gist.github.com/LiveOverflow/8325c58ecf5b385a2028f3174ee47c18

Chapters:

00:00 - Intro and Background

00:53 - Networking as a Blackbox

01:24 - forwarder.py: Forward Data via Networking

02:43 - Using forwarder.py as a Proxy

04:31 - xor_forwarder.py: Forward "XOR Encrypted" Data via Networking

06:58 - The VPN Blackbox

08:10 - VPNs Forward Entire Packets

10:01 - Virtual Network Cards with TUN/TAP

12:34 - Outro

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