NoCatAuth: Authentication for Wireless Networks

Lisa writes: "Even an open community wireless network needs to keep track of who's using it, says Rob Flickenger, who describes the authentication system used by NoCat in this article." This is at least partially an ad for Flickenger's new book, but since I plan to buy the book anyway... Update: 11/17 14:53 GMT by M : Yep, this is a duplicate. But community wireless needs more participants, so why not read it again? :)