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I set up claims based authentication on one of our web applications. It works with forms authentication. There are 20,000 users that need to access to this site but I don't know how to add them. Do I have to give every one of them Full Read permissions on the web application? Then how can I give them write permissions on the lists?

Thanks in advance.

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Guess if you had groups and users to the groups it would be much easier to manager – naijacoder Jul 28 '11 at 10:05
up vote 3 down vote accepted

My own answer to my question:

I gave Full Read to All Authenticated Users on the web application level then added All Authenticated Users to Site Members.

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please mark your answer as correct answer – Anders Rask Nov 14 '11 at 21:36

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