Is it possible to have same users across various applications which work on different platforms? I want a single sign on feature for applications which are coded in .net + oracle and php + MySQl. Any help will be appreciated.
Yup Either use a DB that works across multiple platforms Or have a central "user" server and use an API to request logins / personal information and that
I think I will have to go with that. Do you have any more information or a link which can exlplain me more about the API?
Er not really im afraid. Basically you want a sever or domain that takes in certain parameters and dishes back info. So youll prob want to do something like this: 1. User tries to logon to site A 2. Site A contacts the user server with parameters: username and password 3. User server returns whether details are correct or incorrect Thats a very basic system to check whether someone can login. Obviously you will want to make sure you hash or encrypt the passwords, and not make the API public [i.e. do the remote calls from PHP] The rest is up to you and how far you wanna take it