Port States

Networking

Understanding Ports
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A network port is a logical communication endpoint used to direct network traffic to a service on a host. Ports work with IP addresses and transport protocols to support network communication and connect network services with applications. Understanding port numbers, states, service identification, discovery, and security provides a foundation for understanding network communication.

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Ethical Hacking

Decoding Port States in Port Scanning During Reconnaissance
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Port state decoding during port scanning as part of reconnaissance helps identify accessible services and understand potential network exposure. Open, closed, filtered, and open|filtered states provide different indications about how a target responds to probes and whether network services are reachable or obscured by filtering mechanisms.

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