Computer Ports EXPLAINED | Port Number | Port Forwarding | Network Concepts

Описание: Ever wondered how one laptop can browse Google, stream Netflix, attend Zoom calls, run WhatsApp, and play games — all at the same time using ONE IP address?

🤯 The secret is PORTS.

In this video, we break down ports in networking from absolute basics to deep internals — slowly, visually, and clearly.

🔍 In this video, you’ll learn:

✔ What a port really is (beyond “HTTP = 80”)
✔ Why we have 65,535 ports (and not more or less)
✔ How IP + Port + Protocol = Socket
✔ Why two apps cannot bind to the same port
✔ Difference between well-known, registered & ephemeral ports
✔ How browsers use random ports for every tab
✔ TCP vs UDP ports (reliability vs speed)
✔ Why DNS uses Port 53
✔ Why firewalls block 22, 3389, 21
✔ How NAT rewrites ports at home
✔ Why games need open ports / UPnP / NAT types
✔ How servers “listen” and clients “connect”

By the end, ports will no longer feel abstract — you’ll see exactly how they keep the internet from collapsing.

🎯 Perfect for:

Networking beginners

CCNA / interview prep

Cloud & DevOps learners

Cybersecurity basics

Anyone confused by ports & firewalls

👉 Like & Subscribe if networking finally makes sense
👉 Comment “PORTS” if you want a firewall & hacking-focused follow-up

#Networking
#Ports
#HowInternetWorks
#CCNA
#CyberSecurity
#TCPUDP
#Firewall
#NAT
#TechExplained
#computernetworking
0:00 Ports are logical numbers identifying specific applications on a device.
1:30 IP identifies the device; ports identify the specific process or app.
3:00 Ports enable multiplexing and isolate traffic between apps like Chrome and Gmail.
4:30 There are 65,535 ports available, derived from a 16-bit number system.
6:00 IANA standardizes ports: HTTP (80), HTTPS (443), and DNS (53).
7:30 Ephemeral ports are assigned by the OS for temporary outgoing connections.
9:00 A socket combines IP address, port, and protocol to uniquely identify traffic.
10:30 Firewalls block specific ports to control or restrict network application access.
12:00 Browser tabs use unique ports to keep separate web sessions distinct.
13:00 Ports function at the transport layer to manage communication.