tim siu thinks this is interesting: Protecting a Resource with a MemoryRealm From Chapter 6: Configuring Security Realms from Apache Tomcat 7 by Aleksa Vukotic, James Goodwill Publisher: Apress Released: September 2011 Note follow the example please Share this highlight http://www.safaribooksonline.com/a/apache-tomcat-7/17045/ Twitter Facebook Google Plus Email Get Instant Access Now Start a Free Trial Learn about Safari for Business Have an account? Sign in. Minimise Unlock the rest of Apache Tomcat 7 and 30,000 other books and videos By clicking this box, you confirm that you have read and agree to the terms and conditions of our Membership Agreement, and you understand that when your trial period ends, you will be required to provide billing information if you wish to continue using the service. Unlock the rest of this book Start a Free 10-Day Trial loading Learn about Safari for Business Have an account? Sign in.