Programming with Python

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Sockets are interior endpoint built for sending and receiving data. It is a combination of an IP address and a port.

A single network has two sockets one for each communicating device or a program.

Sockets and the socket API are used to send messages across a network. They provide a form of inter-process communication (IPC).

A single device can have ‘n’ number of sockets based on the port number that is being used.

Lets us see some common port numbers and a protocol.

  • HTTP – 80
  • FTP – 20
  • NNTP – 119
  • SMTP – 25
  • Telnet – 23

This is all about socket.

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