Dive into an in-depth lecture on port scanning for security and ethical hacking. Explore the fundamentals of ports, TCP flags, and banner grabbing techniques. Gain hands-on experience with popular tools such as Nmap, Angry IP, Superscan, and Scanrand. Cover essential topics including TCP port scanning, packet tracing, open port detection, and countermeasures. Examine web sniffing, wired sniffing, and SSL sniffing methodologies. Conclude with a discussion on IP addressing and its relevance to port scanning. Equip yourself with valuable knowledge for enhancing network security and conducting ethical hacking practices.