Tutorial

How Network Protocols Work

Network Protocols Work By Communicating With Each Other By Sending Headers And Identifiers Then Performing Operations Based On The Headers.

Example:

HTTP

The HTTP Protocol Works By Sending Requests/Responses As A Bytes-Like Objects Over TCP Connection (Sockets) Here's An Example In Python:

>>>response = b"""HTTP/1.1 200 OK Date: %s Server: PythonSimpleHTTP Accept-Ranges: bytes Connection: close Content-Type: text/html ...some..html"""
>>>import socketserver
class Test(socketserver.StreamRequestHandler):
#server class
>>>def handle(self):
#simple handling function
>>>...self.wfile.write(response)
#wfile will send the message to the client
>>>s = socketserver.TCPServer(('127.0.0.1',8888),Test) >>>s.serve_forever()

[Simple Tutorial] How Network Protocols Work ? (With Codes)