HTTP TUTORIAL

HTTP Overview

Basically, HTTP is a TCP/IP based communication protocol, that is used to deliver data (HTML files, image files, query results, etc.) on the World Wide Web. The default port is TCP 80, but other ports can be used as well. It provides a standardized way for computers to communicate with each other. HTTP specification specifies how clients' request data will be constructed and sent to the server, and how the servers respond to these requests.

HTTP-Requests:
An HTTP client sends an HTTP request to a server in the form of a request message which includes following format:

• A Request Line
• Zero or more header
• An empty line indicating the end of the header fields
• Optionally a message body