Alternate Access Mappings is a feature of SharePoint which allows a website to function correctly under different URL scenarios, including, reverse proxies and load balancing. It is a common practice used by many companies for their internal and external users. Let me try to explain how to configure Alternate Access Mappings: Let’s say you have top level site collection URL is http://ferdous-bs AND You would like to make URL http://internet.contesto.com for external user and http://intranet.contesto.com ......