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November 22, 2020
In this episode of GeeksBlabla, we will discover with our guests how the Internet actually works.
0:00:00 - Introduction.
0:07:00 - Briefly, how does the Internet work?
0:12:00 - What's the first thing that happens when we type something into Google?
0:17:00 - Electrical signals and Raspberry Pies.
0:20:00 - What can we possibly build with a Raspberry Pi?
0:23:00 - What actually happens when we search for something in Google?
0:25:00 - What does HSTS protect against and how is it implemented?
0:28:00 - What is mixed content (HTTP over HTTPS)?
0:33:00 - What does HTTP or HTTPS mean from the server side?
0:37:00 - What is DNS, how does it work and why is it important?
0:44:00 - Does changing DNS improve Internet speed?
0:53:00 - Do DNS resolvers control your Internet accessibility?
0:57:00 - How is the encapsulated frame sent to the internet through the default gateway?
1:03:00 - HTTP and the OSI model.
1:07:00 - What is the MAC address?
1:08:00 - What exactly is a protocol?
1:11:00 - Game Theory and communication networks.
1:13:00 - What is ARP cash poisoning (ARP Spoofing)?
1:15:00 - What happens when an HTTP request reaches the Server?
1:22:00 - Why is it said that HTTP is a stateless protocol?
1:24:00 - Reverse Proxy Server attacks.
1:25:00 - Concepts every back-end developer must be familiar with (sessions, cookies and ORM).
1:31:00 - Subdomains (cost, limitations and hosting).
1:33:00 - What is a Canonical Name (CNAME)?
1:35:00 - Why a Server has to be near the Client and how does it impact the Latency?
1:37:00 - As a DevOps engineer, how much do you need to know about network protocols? Are the basics enough?
1:39:00 - What is the difference between a Reverse Proxy and a Load Balancer?
1:47:00 - What is JSON Web Token (JWT) and how does it work?
1:54:00 - How does a Server respond to a request?
2:04:00 - What are the major components of a web browser?
2:13:00 - What is HTML parsing?
2:18:00 - Why is it important for a software engineer to have global knowledge?
2:23:00 - What is HTTP/3?
2:31:00 - Briefly, what exactly is the Deep Web?
2:37:00 - Wrap up and goodbye.