Essential Guide to Network Ports: From Well‑Known to Dynamic and Security Risks

This article explains the dual physical and logical meanings of network ports, classifies them into well‑known, registered, and dynamic ranges, lists common service ports with their typical uses, and highlights security concerns such as malware backdoors and common scanning techniques.

Network ProtocolsTCP/IPnetwork ports

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Essential Guide to Network Ports: From Well‑Known to Dynamic and Security Risks

Open Source Linux

Apr 25, 2022 · Information Security

What Do All Those Network Port Numbers Really Mean? A Complete Guide

This article explains the two common meanings of network ports, categorizes the 65,535 possible ports into well‑known, registered, and dynamic ranges, and provides detailed descriptions of many specific ports, their associated services, and the security implications or malware that often target them.

ProtocolsTCP/IPdynamic ports

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What Do All Those Network Port Numbers Really Mean? A Complete Guide