O'Reilly logo

J2EE™ Tutorial, The by Beth Stearns, Monica Pawlan, Eric Jendrock, Kim Haase, Dale Green, Stephanie Bodoff

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

J2EE Users, Realms, and Groups

A J2EE user is similar to an operating system user. Typically, both types of users represent people. However, these two types of users are not the same. The J2EE authentication service has no knowledge of the user name and password you provide when you log on to the operating system. The J2EE authentication service is not connected to the security mechanism of the operating system. The two security services manage users that belong to different realms.

A realm is a collection of users that are controlled by the same authentication policy. The J2EE authentication service governs users in two realms: certificate and default.

Certificates are used with the HTTPS protocol to authenticate Web browser clients. To verify ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required