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Friday, October 7, 2011

What about Cookies

What about Cookies

A message given to a Web browser  by a Web server The browser stores the message in a text file. The message is then sent back to the server each time the browser requests a page from the server.
The main purpose of cookies is to identify users and possibly prepare customized Web pages for them. When you enter a Web site using cookies, you may be asked to fill out a form providing such information as your name and interests. This information is packaged into a cookie and sent to your Web browser which stores it for later use. The next time you go to the same Web site, your browser will send the cookie to the Web server. The server can use this information to present you with custom Web pages. So, for example, instead of seeing just a generic welcome page you might see a welcome page with your name on it.
The name cookie derives from UNIX objects called magic cookies. These are tokens that are attached to a user or program and change depending on the areas entered by the user or program.



Uses of cookies
Websites use cookies to offer a personalized experience to users and to gather information about website use. Many websites also use cookies to store information that provides a consistent experience between sections of the site, such as a shopping cart or customized pages. With a trusted website, cookies can enrich your experience by allowing the site to learn your preferences or allowing you to skip having to sign in every time you go to the website. However, some cookies, such as those saved by banner ads, might put your privacy at risk by tracking sites you visit.
Type of Cookies-
Temporary cookies
Temporary cookies (or session cookies) are removed from your computer after you close Internet Explorer. Websites use them to store temporary information, such as items in your shopping cart.
Persistent cookies
Persistent cookies (or saved cookies) remain on your computer after you close Internet Explorer. Websites use them to store information, such as your sign-in name and password, so that you don't have to sign in each time you go to a particular site. Persistent cookies can remain on your computer for days, months, or even years.
First-party cookies
First-party cookies come from the website that you're viewing and can be either persistent or temporary. Websites might use these cookies to store information that they'll reuse the next time you go to that site.
Third-party cookies
Third-party cookies come from other websites' advertisements (such as pop-up or banner ads) on the website that you're viewing. Websites might use these cookies to track your web use for marketing purposes.
Path and folder where cookies stored
Cookies are stored is in a folder named Cookies which is stored inside the Documents and Settings folder. By default, the path is C:\Documents and Settings\your user name\Cookies.
Can Computer blocks cookies
You can block or allow cookies on all websites or you can choose which websites' cookies are allowed.
Can Computer block all cookies?
Not necessarily. Blocking all cookies can help protect your privacy, but it might limit your experience on some websites. Be selective about which websites you allow cookies for. You can start by blocking all cookies, and then allow cookies as needed for websites that you trust.
Path and folder where cookies stored
Cookies are stored is in a folder named Cookies which is stored inside the Documents and Settings folder. By default, the path is C:\Documents and Settings\your user name\Cookies.
Deleting cookies
You can delete all or some cookies in Internet Explorer.
To delete a single cookie
  1. In Internet Explorer, click the Tools button, and then click Internet Options.
  2. On the General tab, under Browsing history, click Settings.
  3. Click the View files button.
  4. Click the Name column heading to sort all the files alphabetically, and then scroll down until you see files that begin with the prefix Cookie:. All cookies will have that prefix, and they usually contain the name of the website that created the cookie.
  5. Right-click the cookie you want to delete, click Delete, and then click Yes.
  6. Close the window that contains the list of files, and then click OK twice to return to Internet Explorer.
To delete all cookies
  1. In Internet Explorer, click the Tools button, and then click Internet Options.
  2. On the General tab, under Browsing history, click Delete.
  3. Select the check box next to Cookies. If you only want to delete cookies, clear any other check boxes.
  4. Click Delete, and then click OK.
Note
  • Some websites store your member name, password, or other information about you in a cookie. If you delete that cookie, you might need to enter your personal information again the next time you visit the site.
Windows PC
Google Chrome
Click on the "Tools" menu and select "Options".
Click the "Under the Bonnet" tab and locate the "Privacy" section, and choose the "Content settings" button.
Click the "Cookie settings" tab and choose your preferred settings.
Google Chrome allows all cookies by default, but you can restrict the behaviour of first-party and third-party cookies or even block them completely.
Click on the Close button when you've finished.
Internet Explorer 8.0
Choose Tools and then Internet Options
Click the Privacy tab
Move the slider to choose your preferred settings.
For more specialised cookie settings click on Advanced, check the 'Override cookie handling' button and modify the settings to suit your requirements.
Internet Explorer 7.0
Choose Tools and then Internet Options
Click the Privacy tab
Move the slider to choose your preferred settings.
The default setting is medium and the menu allows you to select the level of "filtering" on the basis of (a) the source of the cookie and (b) whether the source has a privacy policy.
For more specialised cookie settings click on Advanced
Internet Explorer 6.0
Choose Tools and then Internet Options
Click the Privacy tab
Move the slider to choose your preferred settings.
The default setting is medium and the menu allows you to select the level of "filtering" on the basis of (a) the source of the cookie and (b) whether the source has a privacy policy.
For more specialised cookie settings click on Advanced
Internet Explorer 5.0
Choose Tools and then Internet Options
Click the Security tab
Select Internet, then Custom Level
Choose one of the options
Internet Explorer 4.0
Choose View and then Internet Options
Click the Advanced tab
Scroll down to the yellow exclamation icon under Security and choose one of the three options (accept or reject cookies or warn before accepting cookies).
Internet Explorer 3.0
Choose View, then Options and Advanced. You can click on the Warn Before Accepting Cookies command.
AOL 9.0
From the AOL Toolbar, select Settings
Select Internet [Web] Options
Select Use your Internet Explorer Settings to set advanced browser options
Select the Privacy tab
Select Advanced
Deselect override automatic cookie handling button
Click OK to exit.
AOL 8.0
From the AOL Toolbar, select Settings
Select Preferences
Select Internet Properties (WWW)
Select the Privacy tab
Select Advanced
Deselect override automatic cookie handling button
Click OK to exit.
AOL 7.0 with IE 6.x
From the AOL Toolbar, select Settings
Select Preferences
Select Internet Properties (WWW)
Select the Privacy tab
Select Advanced
Deselect override automatic cookie handling button
Click OK to exit.
Mozilla
Choose Preferences from the Edit menu.
Select Privacy & Security, then select Cookies.
Choose your preferred settings.
Mozilla Firebird 0.7
Click on Tools, then Options
Select the Privacy icon in the left-hand panel
Click on Cookies.
Choose your preferred settings.
Mozilla Firefox 1.0
Click on Tools, then Options
Select the Privacy icon in the left-hand panel
Click on Cookies.
Choose your preferred settings.
Mozilla Firefox 1.5
Click on Tools, then Options (or Edit | Preferences on Linux)
Select the Privacy icon in the left-hand panel
Click on Cookies.
Choose your preferred settings (You can configure which sites are allowed to set cookies, how long to keep them for, and view and manage your existing cookies.).
Mozilla Firefox 2.0
Click on Tools, then Options (or Edit | Preferences on Linux)
Select the Privacy icon in the left-hand panel
Click on Cookies.
Choose your preferred settings.
Note that the option to block third-party cookies has been removed from Firefox 2's user interface. Firefox 2 users who wish to limit allowed cookies to those set by the originating website can use about:config to modify the preference network.cookie.cookieBehavior to "1". To modify this property simply type "about:config" (without quotes) in the Location Bar, press Enter and modify the value in the resulting page.
Other options for the network.cookie.cookieBehavior preference are set out below:
"0"  All cookies are allowed. (Default)
"1"  Only cookies from the originating server are allowed.
"2"  No cookies are allowed. 
Mozilla Firefox 3.0
Click on Tools, then Options (or Edit | Preferences on Linux)
Select Privacy
Select Cookies.
Choose your preferred settings (You can configure which sites are allowed to set cookies, how long to keep them for, and view and manage your existing cookies.).

Netscape Navigator 7
Choose Preferences from the Edit menu.
Select Privacy & Security, then select Cookies.
Choose your preferred settings.
Netscape Navigator 6
Choose Preferences from the Edit menu.
Select Privacy & Security, then select Cookies.
Choose your preferred settings.
Netscape Navigator 4
Go to the task bar and click Edit. Click Preferences and Advanced, and then choose your options in the Cookies box.
Deepnet Explorer
Click on Tools
Then select Cookie Manager. Here you will be able to access various aspects of the Cookie Manager.
Deepnet Explorer 1.1+
Choose Clean up from the Tools menu
Choose Clear Cookies
All cookies will be removed.
Deepnet Explorer 1.5.3 (BETA 3)
Choose Tools
Click on Web Browser Options
Cookie Filter gives you control over the black and white list and the Cookie Manager gives you information about all the cookies on your PC.
Opera (Windows and UNIX)
Go to Tools in the main menu
Go to Preferences at the bottom of the File menu (or press Alt+P to access them directly).
Click Privacy and select one of the available options.
In addition to choosing different settings for first-party ("normal") and third-party cookies, you may edit cookie settings on a domain/server basis or even edit individual cookies by clicking the "Manage cookies" button.
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