In some business scenarios, internal clients protected by Microsoft Internet Security and Acceleration (ISA) Server 2004 may require access to secure Internet Web sites. This scenario can be configured as follows:

• Configure a tunneled Secure Sockets Layer (SSL) end-to-end secure HTTP (HTTPS) connection between the internal client and the external Web site.
  
• Configure clients to request the external Web site using Hypertext Transfer Protocol (HTTP), and then redirect the request from the ISA Server computer to the site using HTTPS.
  

This document discusses both approaches, and provides instructions for configuring redirection of HTTP requests over HTTPS.