24videosChris Greer
178K subscribers on YouTube
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Playlists · 7
8:24HOW QUIC WORKS - Intro to the QUIC Transport Protocol
Intro109K views
An introduction to the QUIC transport protocol and how it differs from TCP+TLS.
51:04Hands-On Traffic Analysis with Wireshark - Let's practice!
75.5K views
A 51-minute hands-on practice session analysing real traffic captures in Wireshark.
13:29How ARP Poisoning Works // Man-in-the-Middle
96.8K views
How ARP poisoning enables a man-in-the-middle attack, demonstrated in a lab.
9:56How DHCP Works // DHCP EXPLAINED
40.4K views
How DHCP assigns addresses: the discover/offer/request/acknowledge exchange.
18:10How DNS Works Under the Hood (Packet by Packet)
21.9K views
How DNS resolution works, followed packet by packet in Wireshark.
14:41
9:51
9:26How TCP RETRANSMISSIONS Work // Analyzing Packet Loss
86.3K views
How TCP retransmissions work and how to analyse packet loss.
16:40How TCP Sequence Numbers Work - TCP Deep Dive // Hands-On Case Study
56.4K views
How TCP sequence and acknowledgement numbers work, in a hands-on case study.
15:53TCP Congestion Control // Hands-On Deep Dive TCP Analysis with Wireshark
67.7K views
TCP congestion control (slow start, congestion window, fast recovery) seen in real captures.
7:31TCP vs UDP Explained // Hands On Lab Example with Wireshark
51K views
TCP versus UDP, compared with a hands-on lab.
2:533 Tips for Wireshark Beginners
Intro
A 3-minute video from Chris Greer: “3 Tips for Wireshark Beginners”.
2:31Analyze Traffic Faster with Custom Columns!
A 3-minute video from Chris Greer: “Analyze Traffic Faster with Custom Columns!”.
5:21Analyzing Conversations - Wireshark QUICK TIP!
A 5-minute video from Chris Greer: “Analyzing Conversations - Wireshark QUICK TIP!”.
10:25Analyzing a Log4j Exploit with Wireshark (and how to filter for it) // Sample PCAP!
A 10-minute video from Chris Greer: “Analyzing a Log4j Exploit with Wireshark (and how to filter for it) // Sample PCAP!”.
15:15At What Point Do Laptops Start Dropping Packets?
A 15-minute video from Chris Greer: “At What Point Do Laptops Start Dropping Packets?”.
7:57Catch a MiTM ARP Poison Attack with Wireshark // Ethical Hacking
A 8-minute video from Chris Greer: “Catch a MiTM ARP Poison Attack with Wireshark // Ethical Hacking”.
27:51DNS Security Explained (DNSSEC, DoH, DoT, DoQ) - Interview with Ross Gibson
A 28-minute video from Chris Greer: “DNS Security Explained (DNSSEC, DoH, DoT, DoQ) - Interview with Ross Gibson”.
5:03Extracting Files from PCAPs with Wireshark // Lesson 9 // Wireshark Tutorial
A 5-minute video from Chris Greer: “Extracting Files from PCAPs with Wireshark // Lesson 9 // Wireshark Tutorial”.
7:12Fix a TCP ZERO Window // TCP Deep Dive with Wireshark
A 7-minute video from Chris Greer: “Fix a TCP ZERO Window // TCP Deep Dive with Wireshark”.
5:15Getting Started With Wireshark - Initial Setup
Intro
A 5-minute video from Chris Greer: “Getting Started With Wireshark - Initial Setup”.
7:40Hacking with NMAP - How to Scan a Network
A 8-minute video from Chris Greer: “Hacking with NMAP - How to Scan a Network”.
13:16How OS Fingerprinting Works // NMAP Tutorial
A 13-minute video from Chris Greer: “How OS Fingerprinting Works // NMAP Tutorial”.
3:10How TCP Works - No Operation Option
A 3-minute video from Chris Greer: “How TCP Works - No Operation Option”.
4:08How TCP Works - Acknowledgment Numbers
A 4-minute video from Chris Greer: “How TCP Works - Acknowledgment Numbers”.
4:39How TCP Works - Bytes in Flight
A 5-minute video from Chris Greer: “How TCP Works - Bytes in Flight”.
14:14How TCP Works - Duplicate Acknowledgments
A 14-minute video from Chris Greer: “How TCP Works - Duplicate Acknowledgments”.
10:37How TCP Works - How to Interpret the Wireshark TCPTrace Graph
A 11-minute video from Chris Greer: “How TCP Works - How to Interpret the Wireshark TCPTrace Graph”.
7:32How TCP Works - Selective Acknowledgment (SACK)
A 8-minute video from Chris Greer: “How TCP Works - Selective Acknowledgment (SACK)”.
6:25How TCP Works - Sequence Numbers
A 6-minute video from Chris Greer: “How TCP Works - Sequence Numbers”.
4:46How TCP Works - Stevens Graph - Troubleshooting Slow File Transfers in Wireshark
A 5-minute video from Chris Greer: “How TCP Works - Stevens Graph - Troubleshooting Slow File Transfers in Wireshark”.
13:53How TCP Works - The Handshake
A 14-minute video from Chris Greer: “How TCP Works - The Handshake”.
9:35How TCP Works - The Receive Window
A 10-minute video from Chris Greer: “How TCP Works - The Receive Window”.
7:30How TCP Works - The Timestamps Option
A 8-minute video from Chris Greer: “How TCP Works - The Timestamps Option”.
8:26How TCP Works - What is a TCP Keepalive?
A 8-minute video from Chris Greer: “How TCP Works - What is a TCP Keepalive?”.
8:57How TCP Works - Window Scaling
A 9-minute video from Chris Greer: “How TCP Works - Window Scaling”.