What Is a Socket? The IP Address and Port Number Explained Simply
A network socket is the combination of an IP address and a port number, forming a unique endpoint that allows two computers to communicate over the internet. Just as a hotel address directs mail to a building and a room number routes it to the right guest, an IP address identifies a machine while a port number directs data to the correct application running on it. Every standard web interaction — not just real-time apps like chat or live dashboards — relies on sockets under the hood. When two machines connect via their respective sockets, the operating system creates a virtual pipe through which data flows between them. On Linux and Unix systems, the OS manages these connections by treating open socket pipes as files, allowing it to handle thousands of simultaneous connections in a consistent and efficient way.
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