http://localip:8080/ecommmerce - Frontend E-Commerce
https//localip:8443/catalog - E-Com... Backend
https//localip:8080/content - CMS
...
The mount-point for every app can be found in the "ofbiz-component.xml" element "webapp" --> mount-point.
See for expamle ./specialpurpose/ecommerce/ofbiz-component.xml
If you are logged in as admin user you will see all backend apps in the dropdown. Hope that helps.