Occasionally, you will need to shut down your site for maintenance. To display a "Site is under maintenance" page for some users but allow access to users with the correct permissions, follow these steps:

1. Open the core.xml file located in the Viewpoint home directory.
2. Add the following line to the <properties> element: <app-jsp-path>maintenance_application.jsp</app-jsp-path>.
3. Save the file.

Users who do not have the permission "maintenance user" ("<permission name="maintenance.user" />") will not be able to access the site. The server will not need to be restarted.