f7744b72_e__8_0_24____The_AJP_Connector__Description
[Attribute] tomcatAuthentication [Description] 
If set to true, the authentication will be done in Tomcat. Otherwise, the authenticated principal will be propagated from the native webserver and used for authorization in Tomcat. Note that this principal will have no roles associated with it. The default value is true. If tomcatAuthorization is set to true this attribute has no effect.
Apache Tomcat 8 Configuration Reference (8.0.24) - The AJP Connector