This section describes what is a cookie - a small amount of information sent by a Web server to a Web browser, saved by the browser, and sent back to the server later.
What Is a Cookie? Cookie is a small amount of information sent by a Web server to
a Web browser, saved by the browser, and sent back to the server later.
Cookies are transmitted inside the HTTP header.
Cookies move from server to browser, and back to server as follows:
Web Web Local Web Web
Server Browser System Browser Server
Send Receive Save Send back Receive
cookies --> cookies --> cookies --> cookies --> cookies
As you can see from the diagram, cookies are actually saved to the hard disk
of Web browser user's machines. Many users are concerned about this. But I think
it is pretty safe to allow your browser to save cookies.
If you are really concerned, you can change your browser's settings to reject
cookies. But this may cause many Web based applications fail to run on your
browser.
