Google applications single sign on

Google applications single sign on


Have you noticed this stuff  using google applications like www.orkut.com , www.google.com , www.gmail.com , www.google.com/analytics
 
e.g. using IE 6

1. open www.orkut.com login to it

2. open new tab open www.google.com you will see your signed in status at top right corner.

3. Click log out from www.google.com, you will get loged out

4. try to access the links inside www.orkut.com you will be redirected to login

5. go back to google.

6. Login to google Notice once you loged in to google obeserve orkut signin page is automatically redirecting you to authorised zone.

I think it can be done using cookies where you should continuosely check wheather cookie is expired / not based on that do
auto login logout.

anybuddy has any idea how they are doing ? or any other way to acheve it ?

ASP.net single sign on triks and tips can be found at http://blogs.neudesic.com/blogs/michael_morozov/archive/2006/03/17/72.aspx

-Satalaj

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My name is Satalaj, but people call me Sat. Here is my homepage: . I live in Pune, PN and work as a Software Engineer. I'm former MVP in ASP.net year 2010.
Disclaimer: Views or opinion expressed here are my personal research and it has nothing to do with my employer. You are free to use the code, ideas/hints in your projects. However, you should not copy and paste my original content to other web sites. Feel free to copy or extend the code.
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I'm Satalaj.