Tomcat's Host Manager application by default is located at http://localhost:8080/host-manager, but is not accessible until a user is given permission in the conf/tomcat-users.xml
file. The file needs to have:
manager-gui
roleFor example:
<tomcat-users>
...
<role rolename="manager-gui"/>
....
<user username="host-admin" password="secretPassword" roles="manager-gui"/>
</tomcat-users>