多站点登录ala Google [英] Multi-site login ala Google
问题描述
不确定标题是否正确，但是我想不出其他任何方式.
Not sure if the title is quite right for the question but I can't think of any other way to put it..
假设您要创建多个不同的Web应用程序，但是您希望一个登录到一个应用程序的用户能够直接转到另一个应用程序而无需重新登录(假设他们有权限查看另一个应用程序)以及).如果我没记错的话，如果您已登录gmail，则可以直接进入iGoogle，googleReader等，而无需重新登录(如果设置正确).
Suppose you wanted to create multiple different web apps, but you wanted a user who was logged into one app to be able to go straight to your other app without re-logging in (assuming they have perms to look at the other app as well). If I'm not mistaken, if you're logged into gmail you can go straight to your iGoogle, googleReader, etc without re-logging in (if you set it up right).
您将如何处理?你会用什么?假设应用已经存在，并且您不想更改用户的初始登录页面.
How would you approach this? What would you use? Assume the apps already exist and you don't want to change the initial login page for the users.
推荐答案
What you're looking for is called Single Sign On. If you follow the link you'll find several implementations.
其他人提到的Open ID并不是一种方案，因为它要求每个站点分别登录.开放ID仅仅是一个共享的身份验证系统.
Open ID as others have mentioned is not such a scheme as it requires a seperate login for each site. Open ID is merely a shared authentication system.
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