In networking, ports are numerical identifiers used to distinguish different services or applications running on a device. They allow multiple network services to operate simultaneously on a single IP address. Here's a brief overview:
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Port Number: A port is represented by a number ranging from 0 to 65535. Commonly used ports include:
- HTTP: Port 80
- HTTPS: Port 443
- FTP: Port 21
- SSH: Port 22
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Purpose: Ports help direct incoming and outgoing traffic to the correct application. For example, when you access a website, your browser connects to port 80 (HTTP) or 443 (HTTPS) on the web server.
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Types of Ports:
- Well-Known Ports: 0-1023, reserved for common protocols.
- Registered Ports: 1024-49151, assigned for specific services.
- Dynamic/Private Ports: 49152-65535, used for temporary connections.
If you want to learn more about networking concepts, consider exploring relevant labs on LabEx!
