LYCOS RETRIEVER 
Cookie: Browsers
built 144 days ago
The line Set-cookie is only sent if the server wishes the browser to store a cookie. Set-cookie is a request for the browser to store the string name=value and send it back in all future requests to the server. If the browser supports cookies and cookies are enabled, every subsequent page request to the same server contains the cookie. For example, the browser requests the page http://www.w3.org/spec.html by sending the server www.w3.org a request like the following:
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If you use client-side languages to set a cookie, you can set and read on the same page. Cookies set by JavaScript or VBScript reside in the browser's memory already, so you will know if they have been accepted right away. Check by setting a test value, and then try to read that value back out of the cookie. If the value still exists, the cookie was accepted.
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Your browser stores each message in a small file, called cookie.txt. When you request another page from the server, your browser sends the cookie back to the server. These files typically contain information about your visit to the web page, as well as any information you've volunteered, such as your name and interests.
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The value of a cookie can be modified by the server by sending a new Set-Cookie: name=newvalue line in response of a page request. The browser then replaces the old value with the new one.
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A cookie management package is the best first line of defense. You can ... tell your browser that you don't want cookies, or to alert attempts to place a cookie. (Or if you use your cookie management software to accept cookies selectively, tell your browser to warn you before accepting cookies.) If you're using a major browser numbered below 4.0 it probably only gives you the option to refuse each cookie at the time it is pushed at you: you have to keep saying no every time.
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This creates the most basic of cookies, storing the user's name in a cookie called 'UsersName'. By setting cookies like this, you don't set any specific options, so by default the cookie will be available to the domain in which it was set (e.g. yoursite.com) and will be deleted when the user closes their browser.
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