Common Ports - Cheat Sheet
A port is a virtual point where network connections start and end. Ports are software-based and managed by a computer's operating system. You may find a cheat sheet in this page.
Each port is associated with a specific process or service. Ports allow computers to easily differentiate between different kinds of traffic: emails go to a different port than webpages, for instance, even though both reach a computer over the same Internet connection.
Here is a cheat sheet for you:
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