person, only loosely familiar with the use of Internet resources, at first glance it may seem that, apart from the annoying ads on the sites, no peculiarities: the program selected for viewing pages (browser) sends requests and distant servers returnanswer.
actually a bit more complicated and there are some features that significantly extend the scheme of "challenge-response".One of them - this is a cookie (cookies).They are small files of 4 kilobytes, containing some text.Most users are unaware that their browser is actively using cookies.When accessing the Internet user client to the server sends to the computer the last special file - cookies.It contains information to identify the user.In the future, each new connection to this resource begins with a browser on the server of the file.As a result, a user comes to the site already under his login / password, and the page is displayed exactly as they were configured in the previous visit.Here is an example of the site of TV programs: the visitor registers and selects the list of displayed channels.If the server requires the use of cookies, then you visit the site next time, you will see only the selected channels.In fact, much wider possibilities, but they are beyond the scope of the review article.
Once these small files containing information that identifies a visitor, it is quite clear why the frequently asked question, "How do I clear cookies?».If the computer is in the sole use, something about this security can not particularly think.But access to the system, third parties have an opportunity to go to the site, using the data stored in the cookie.The user does not know how to clear cookies or not timely made this operation, is in danger of making purchases with his accounts and some other troubles, such as viewing all the pages they visited.Obviously, the safety must not be forgotten.
Before you learn how to clear cookies, it should be noted that these small files still need as much easier to work on the Web.It is therefore recommended to save the file cookies on a separate carrier or archive with a password.Sometimes the archive is simply irreplaceable.
answer to the question "How do I delete cookies?» Depends on the browser.In each of them, you can select several modes of operation: delete cookies when you exit the browser, do not take at all, prompting the user.
If the user uses the Opera, but does not know how to clear cookies, you should proceed as follows: press the browser Ctrl + F12, to proceed to the "Advanced" and select «Cookies».Pressing the control button, you can delete unwanted entries.
In Firefox is even easier: Options - Privacy.In the "Delete selected cookies" have the opportunity to erase them selectively or all at once.In
which is part of Windows Internet Explorer in the properties you need to select "General", where browsing history delete temporary Internet files.
In Google Chrome, you must open the settings, select the Advanced View and placing the desired checkmark selectively clear history.
There is a better way, how to clean cookies.It is the use of special programs.One of the most popular - is CCleaner.It is necessary to press "Clear", and select the cookies.The program has great potential, so we remove the check mark from the operations that is required.In the settings you can specify which cookies you want to save.Creating a backup reg-file is not recommended to ignore: its size is small, but when possible problems easily restore the previous state of the registry.
