To do this update the web.xml configuration file in Tomcat home directory.
1. Stop the Labtutor Service. A shortcut to the ADInstruments LabTutor Server service controller is installed with LabTutor Server and is accessible from the Windows Start menu. In the Start menu, choose All Programs > ADInstruments > LabTutor Server > Service Controller (right-click) > Run as administrator.
2. Edit the web.xml file. Locate the file in the Tomcat home directory and add the following content into the end before the closing </web-app> markup:
<security-constraint>
<web-resource-collection>
<web-resource-name>Protected Context</web-resource-name>
<url-pattern>/*</url-pattern>
</web-resource-collection>
<!-- auth-constraint goes here if you require authentication -->
<user-data-constraint>
<transport-guarantee>CONFIDENTIAL</transport-guarantee>
</user-data-constraint>
</security-constraint>
3. Restart the service after making these changes.