You better be aware of what just changed on the Internet. TCP is being replaced with QUIC. UDP is being used more and more instead of TCP. This affects your firewalls. It affects a lot of your network troubleshooting. HTTP/3 has been standardized. Everything is encrypted with QUIC - welcome to the new world of network troubleshooting and security. 

// MENU //
00:00 - The Problem with TCP
00:12 - Introducing//Robin Marx
02:12 - Clean Ship, Clean House//RFCs
03:25 - HTTP Semantics//QUIC//HTTP/3
04:17 - Why the Hell Do We Need HTTP/3?
05:05 - Why QUIC?
08:35 - QUIC & TLS Integration
10:02 - Why Use UDP?
13:50 - Replacing TCP with QUIC
14:28 - Summary So Far 
15:22 - Stream Multiplexing
15:40 - Head-of-line blocking
18:40 - Why This Slows Things Down
19:29 - How QUIC Does It Differently
20:58 - TCP vs QUIC//Packet Handling
23:11 - HTTP/3 Prioritization
25:25 - Stats//QUIC Isn't Going Anywhere 
26:30 - Firewalls are almost useless
27:20 - Firewalls Blocking QUIC?
28:04 - QUIC & Other Protocols?
29:20 - IPv4 & IPv6//Different for QUIC?
29:54 - Challenges for QUIC's Growth
30:43 - Connection Migration
33:33 - What About Hackers? 
36:32 - How Do I Get To Use QUIC?
38:28 - Large Companies Adopting QUIC
39:09 - The Internet is Too Centralized?
40:02 - Header Compression
41:55 - Server Push
43:47 - Practical Examples with Wireshark
50:34 - Thank You & How to Contact Robin

// Robin SOCIAL //
Twitter: https://twitter.com/programmingart
LinkedIn:  https://www.linkedin.com/in/rmarx/
YouTube: https://www.youtube.com/channel/UCyqPrNfndJ7OPhPdYJG-mmQ/videos

// Robin's Blog articles //
HTTP3 core concepts Part 1: https://www.smashingmagazine.com/2021/08/http3-core-concepts-part1/
HTTP3 core concepts Part 2: https://www.smashingmagazine.com/2021/08/http3-performance-improvements-part2/
HTTP3 core concepts Part 3: https://www.smashingmagazine.com/2021/09/http3-practical-deployment-options-part3/

// Chris Greer Videos //
HTTPS Decryption with Wireshark: https://youtu.be/GMNOT1aZmD8
Decrypting TLS, HTTP/2 and QUIC with Wireshark: https://youtu.be/yodDbgoCnLM

// David SOCIAL //
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#http3 #quic #tcp