Protecting applications with mandatory user logins through Policy Agents and OpenSSO, Sun's open-source Web-management project, requires no extra code. Part 1 of a three-part series, newly published on Sun Developer Network, steps you through the configuration process with a sample application. Just a few point-and-clicks and you'll be all set.

Update (12/17/08): Part 2 shows you how to secure only certain pages of an application and make the others publicly accessible.