Port Numbers Explained | Nmap & Wireshark Demo | TCP/IP Model

Port numbers are one of the most important concepts in computer networking and cybersecurity. In this video, you'll learn what port numbers are, the different types of ports, common port numbers, open vs closed ports, listening ports, source and destination ports, port scanning with Nmap, and port forwarding with practical demonstrations using Nmap and Wireshark. ⏱️ Timestamps: 00:00 - Intro 00:45 - What is Port Numbers 01:58 - Port Number Types and Examples 03:18 - Concept of Port Addressing 05:39 - Open and Closed Port Demo 08:38 - Listening Port Demo 11:49 - Source and Destination Port Demo 14:07 - Port Scanning Demo 17:04 - Port Forwarding Demo 21:35 - Outro 📌 Topics Covered: • Port Numbers • Well-Known, Registered & Dynamic Ports • Open vs Closed Ports • Listening Ports • Source & Destination Ports • Port Scanning with Nmap • Port Forwarding • Wireshark Packet Analysis Whether you're learning networking, cybersecurity, ethical hacking, or preparing for certifications, understanding port numbers is essential. 🔔 Subscribe for more Networking & Cybersecurity tutorials. #Networking #CyberSecurity #Nmap #Wireshark #PortNumbers #TCPIP #NetworkSecurity #EthicalHacking #Networking#ComputerNetworks#CyberSecurity#NetworkSecurity#EthicalHacking#InfoSec#CyberSecurityTraining#TCPIP#TransportLayer#PortNumbers#OpenPorts#PortScanning#PortForwarding#Nmap#Wireshark#PacketAnalysis#LinuxNetworking#NetworkEngineer#CCNA#CCNP#CyberSecurityCareer#NetworkAdministration#SystemAdministration#TechEducation#TechExplained#LearnNetworking#NetworkingTutorial#CyberSecurityForBeginners#ITInfrastructure#ComputerScience