ISA 2006 URL Redirect

In this article:
http://www.isaserver.org/tutorials/ISA-Server-2006-Installing-Enterprise-Edition-beta-Unihomed-Workgroup-Configuration-Post-Installation-Part3.html

I read: A Web proxy server is a machine that is able to proxy Web requests from Web proxy clients. The proxy component can authenticate users, perform URL rewrites...

What is basically a URL rewrite?

Take a scenario where you are publishing an internal web site called http://internal

That is literally all that internal users need to put into their browser to pull up this web site's home page. However, you want external users to access this site now. To get to your external router/firewall, a full blown FQDN is required of something like http://www.domain.com.

When external traffic arrives at the ISA box external interface, something has to re-write the URL to turn it from http://www.domain.com to http://internal - the URL is re-written. The way the URL is re-written is completely down to configurable elements that you decide when you create the publishing rule. i.e. convert https to http, the name of the fqdn it will listen for, whether the source appears as coming from ISA or the original client and so on.

For outbound, it is different because every request your clients make to the Internet will be to different web sites. The only re-write method I can think of is done OUTSIDE of the ISA Server although I believe ISA will take note of it. I have placed a link here for your reference:

http://www.isapirewrite.com/docs/#RewriteHeader

This engine is predominantly for IIS Server and I cannot tell you if it works or not.

Keith

Thanks for clarification.