<!--- Add the following filter to the ${TOMCAT_HOME}/conf/web.xml --->
<filter>
  <filter-name>Remote Host Filter</filter-name>
  <filter-class>org.apache.catalina.filters.RemoteHostFilter</filter-class>
  <init-param>
    <param-name>allow</param-name>
    <param-value>atv\.elab\.io\|sub2\.elab.\io</param-value>
  </init-param>
</filter>
<filter-mapping>
  <filter-name>Remote Host Filter</filter-name>
  <url-pattern>/*</url-pattern>
</filter-mapping>