Replacing the default Tomcat error page

The default Tomcat error page shows a full stacktrace which discloses sensitive information such as the Tomcat version. To avoid this, we recommend to modify the server configuration as follows.

1. Connect to the target server using your preferred ssh tool (e.g. putty) and log in.
2. Become the root user:

   sudo su -

3. Change to the folder /opt/eperi/gateway/tomcat/conf:

   cd /opt/eperi/gateway/tomcat/conf

4. Open the server.xml file in an editor (e.g. nano server.xml).
5. Add the following lines inside the <Host> tag:

   <Host name="localhost" appBase="webapps" unpackWARs="true" autoDeploy="true">
         <Valve className="org.apache.catalina.valves.ErrorReportValve"
               showReport="false"
               showServerInfo="false" />
   </Host>

6. Save and exit the server.xml file.
7. Restart eperi sEcure Platform:

   systemctl restart eperi-gateway

   Important: In a cluster setup, the changes must be made on every eperi sEcure Platform instance and each eperi sEcure Platform instance must be restarted.