=== Configuring the Subsystem

Now that you have copied the XML template from the Installation page, you need to paste this into the _standalone.xml_ file
that resides in the _standalone/configuration_ directory of the application server instance on which your application is deployed.

. Open the standalone/configuration/standalone.xml file and search for the following text:
+
[source,xml]
----
<subsystem xmlns="urn:jboss:domain:keycloak:1.1"/>
----

. Modify this to prepare it for pasting in your template from the Installation page:
+
[source,xml]
----
<subsystem xmlns="urn:jboss:domain:keycloak:1.1">
</subsystem>
----

. Within the <subsystem> element, paste in the template. It will look something like this:
+
[source,xml]
----
<subsystem xmlns="urn:jboss:domain:keycloak:1.1">
  <secure-deployment name="WAR MODULE NAME.war">
    <realm>demo</realm>
    <auth-server-url>http://localhost:8180/auth</auth-server-url>
    <public-client>true</public-client>
    <ssl-required>EXTERNAL</ssl-required>
    <resource>vanilla</resource>
  </secure-deployment>
</subsystem>
----

. Change the *WAR MODULE NAME* text to *vanilla* as follows:
+
[source,xml]
----
<subsystem xmlns="urn:jboss:domain:keycloak:1.1">
  <secure-deployment name="vanilla.war">
  ...
</subsystem>
----

. Reboot your application server.  

. Go to http://localhost:8080/vanilla and click *login*. The {{book.project.name}} login page opens. You can log in using the user you created in the <<fake/../../first-realm/user.adoc#_create-new-user, Creating a New User>> chapter.