Before you can use this tutorial, you need to complete the installation of Keycloak and create the initial admin user as shown in the Getting Started Tutorial tutorial. There is one caveat to this. You have to run a separate instance on the same machine as Keycloak Server. This separate instance will run your Java Servlet application. Because of this you will have to run the Keycloak under a different port so that there are no port conflicts when running on the same machine. Use the jboss.socket.binding.port-offset system property on the command line. The value of this property is a number that will be added to the base value of every port opened by Keycloak Server.

To boot Keycloak Server:

For more details about how to install and configure a , please follow the steps on the Securing Applications and Services Guide tutorial.

After installing and booting both servers you should be able to access Keycloak Admin Console at http://localhost:8180/auth/admin/ and also the instance at http://localhost:8080.