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#58 – How Does the Internet Work?

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In this episode of GeeksBlabla, we will discover with our guests how the Internet actually works.

Guests

Notes

0:02 – Introduction.

0:07 – Briefly, how does the Internet work?

0:12 – What’s the first thing that happens when we type something into Google?

0:17 – Electrical signals and Raspberry Pies.

0:20 – What can we possibly build with a Raspberry Pi?

0:23 – What actually happens when we search for something in Google?

0:25 – What does HSTS protect against and how is it implemented?

0:28 – What is mixed content (HTTP over HTTPS)?

0:33 – What does HTTP or HTTPS mean from the server side?

0:37 – What is DNS, how does it work and why is it important?

0:44 – Does changing DNS improve Internet speed?

0:53 – Do DNS resolvers control your Internet accessibility?

0:57 – How is the encapsulated frame sent to the internet through the default gateway?

1:03 – HTTP and the OSI model.

1:07 – What is the MAC address?

1:08 – What exactly is a protocol?

1:11 – Game Theory and communication networks.

1:13 – What is ARP cash poisoning (ARP Spoofing)?

1:15 – What happens when an HTTP request reaches the Server?

1:22 – Why is it said that HTTP is a stateless protocol?

1:24 – Reverse Proxy Server attacks.

1:25 – Concepts every back-end developer must be familiar with (sessions, cookies and ORM).

1:31 – Subdomains (cost, limitations and hosting).

1:33 – What is a Canonical Name (CNAME)?

1:35 – Why a Server has to be near the Client and how does it impact the Latency?

1:37 – As a DevOps engineer, how much do you need to know about network protocols? Are the basics enough?

1:39 – What is the difference between a Reverse Proxy and a Load Balancer?

1:47 – What is JSON Web Token (JWT) and how does it work?

1:54 – How does a Server respond to a request?

2:04 – What are the major components of a web browser?

2:13 – What is HTML parsing?

2:18 – Why is it important for a software engineer to have global knowledge?

2:23 – What is HTTP/3?

2:31 – Briefly, what exactly is the Deep Web?

2:37 – Wrap up and goodbye.

Links

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