2 Ways To Implement Session Tracking

By Kiran Pai
2005-06-11


What is session tracking?
Session tracking (for those who haven't heard of it) is a concept which allows you to maintain a relation between 2 successive requests made to a server on the Internet. Whenever a user browses any website, he uses HTTP (the underlying protocol) for all the data transfers taking place. This ofcourse is not important to the user. But it is for you as a programmer. HTTP is a stateless protocol. When a user requests for a page the server returns that web page to the user. When the user once again clicks on a new link the server once again sends the new page that was requested. The server (because of the use of HTTP as the underlying protocol) has no idea that these 2 successive requests have come from the same user. The server is not at all bothered about who is asking for the pages. All it does it return the page that has been requested. This is exactly what stateless means. There is no connection between 2 successive requests on the Internet.

Tutorial Pages:
» 2 Ways To Implement Session Tracking
» What is session tracking?
» What does HTTP being stateless have to do with session tracking?
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