Tutorial: Packets don't lie: how can you use tcpdump/tshark (wireshark) to prove your point.
1:14:47
SF18EU - 25 Using Wireshark to Solve Real Problems for Real People (Kary Rogers)
13:05
tshark and Termshark tutorial: Capture and view wireshark captures in a console
23:20
tcpdump - Traffic Capture & Analysis
1:17:24
TCP Fundamentals Part 1 // TCP/IP Explained with Wireshark
42:24
Record and replay debugging with "rr"
57:17
The Complete Wireshark Course: Go from Beginner to Advanced!
19:03
Wireshark Packet Sniffing Usernames, Passwords, and Web Pages
51:24