Extend Web Application to Another IIS Web Site

Common mistake that people make when Extending SharePoint web application is to the same name for extension.
 
Always make sure your Web App names are unique and choose to create new web application.
 
 

‹ Error: Access Denied! Only site admin can access Data Source object from user profile DB.

HTTP Error 401.1 – Unauthorized: Access is denied due to invalid credentials. ›

Posted in 2007 (MOSS), Microsoft SharePoint Server