How does Flickr do it?
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A month ago I opened a test account with Flickr. It required me to use a Yahoo mail account. I used an account that I have had for a long time. Everything was easy. Today I decided to create a real account. I created a new Yahoo mail account to associate it with the new Flickr account. It was easy to create the new Yahoo account. But when I try to create a new Flickr account, it asks me to login into Yahoo. After I log in into the Yahoo account, A Flickr page comes back asking me "Why do you want to log into 'oldusername' with the 'newusername'" It seems Flickr has associated my computer with the old Yahoo mail/old Flickr account, and want let me create a new account. Now that is a bit bothersome but I also can value the ability to not let a user use more than one account from the same computer. So my question is: How does Flickr do it? I am sure it does not use cookies, as I cleared all the cookies and also tried to use another browser which I had never used to log into Flickr. In fact I read somewhere that other people have tried rebooting in Linux and Flickr still would recognize them with the old account. So it seems no windows registry either. Any ideas?
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A month ago I opened a test account with Flickr. It required me to use a Yahoo mail account. I used an account that I have had for a long time. Everything was easy. Today I decided to create a real account. I created a new Yahoo mail account to associate it with the new Flickr account. It was easy to create the new Yahoo account. But when I try to create a new Flickr account, it asks me to login into Yahoo. After I log in into the Yahoo account, A Flickr page comes back asking me "Why do you want to log into 'oldusername' with the 'newusername'" It seems Flickr has associated my computer with the old Yahoo mail/old Flickr account, and want let me create a new account. Now that is a bit bothersome but I also can value the ability to not let a user use more than one account from the same computer. So my question is: How does Flickr do it? I am sure it does not use cookies, as I cleared all the cookies and also tried to use another browser which I had never used to log into Flickr. In fact I read somewhere that other people have tried rebooting in Linux and Flickr still would recognize them with the old account. So it seems no windows registry either. Any ideas?
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My guess is that it sounds like they're associating usernames with IP addresses.
------------------- abort, retry, fail?
my guess is that it sounds like they are associating usernames with the email address(that one when you registering you yahoo acount used the backup email address )
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A month ago I opened a test account with Flickr. It required me to use a Yahoo mail account. I used an account that I have had for a long time. Everything was easy. Today I decided to create a real account. I created a new Yahoo mail account to associate it with the new Flickr account. It was easy to create the new Yahoo account. But when I try to create a new Flickr account, it asks me to login into Yahoo. After I log in into the Yahoo account, A Flickr page comes back asking me "Why do you want to log into 'oldusername' with the 'newusername'" It seems Flickr has associated my computer with the old Yahoo mail/old Flickr account, and want let me create a new account. Now that is a bit bothersome but I also can value the ability to not let a user use more than one account from the same computer. So my question is: How does Flickr do it? I am sure it does not use cookies, as I cleared all the cookies and also tried to use another browser which I had never used to log into Flickr. In fact I read somewhere that other people have tried rebooting in Linux and Flickr still would recognize them with the old account. So it seems no windows registry either. Any ideas?
I'd guess that they use a cookie.