Socket Programming in Python

      Socket programming is a way of connecting two nodes on a network to communicate with each other.

       Following Two network communication protocols are used:

        1. TCP/IP: IP uses logical addresses to identify hosts and TCP establish connections

        2. UDP: Communication via short messages

    

       Terms in Socket Programming:

        1. Socket: Socket is the endpoint for client/server communication.

                         

           Socket=IP address + Port number

           

      Where IP is the Internet Protocol that provides unique addressing for all hosts in the network

                  and Port Number represents a single service offered by the server  in which server actively listens on for incoming connections in TCP/IP and messages for UDP.

     

        2. TCP Socket: Below figure shows the functions associated at server and client side.

TCP SOCKET