Is there a way to use the URL Rewriter configuration to change the name of the domain name?   For instance, I have a subdomain that I wish to sunset, and I want to transparently take the visitor to that other page.  The result I expect to see is the domain in the URL change, and nothing else.

Here is what I have begun, but I am unsure as to how I should go about changing the URL while maintaining any previous parameters.

<RewriterRule>
     <LookFor>.*(subdomain\.domain\.com).*/TabId/(\d+)(.*)</LookFor>
     <SendTo>~/Default.aspx?TabId=$2</SendTo>
</RewriterRule>

So, if the following URL were requested:

http://subdomain.domain.com/Home/tabid/36/Default.aspx

It would then get forwarded to:

http://www.domain.com/Home/tabid/36/Default.aspx

In addition, I would want to make sure I do not break any module workflows.  So, I would hope that it could also accomodate this example:

http://subdomain.domain.com/Community/Blogs/tabid/36/EntryID/1234/Default.aspx

And switch it to this:

http://www.domain.com/Community/Blogs/tabid/36/EntryID/1234/Default.aspx

Basically, I want everything intact except for the subdomain.

Okay.  I know that this is not the most elegant approach, and it is not the most SEO friendly approach either, but using the URLRewrite Module and its configuration, I was able to almost get this completed using the following config snippet:

    <RewriterRule>
      <LookFor>.*(subdomain\.domain\.com)(.*)/TabId/(\d+).*</LookFor>
      <SendTo>http://www.domain.com$2/tabid/$3/Default.aspx</SendTo>
    </RewriterRule>

At first glance, it would appear that this should work.  However, there are some very distinct weaknesses:

• I am not sending a HTTP Response 301 header to search spiders
• I am cutting out (or duplicating) the Portal Alias functionality in Site Settings
• I am still getting the folder path sent as a querystring

Does anyone have any idea why I still get the folder path returned as a querystring even though I have it in the rewritten url?

For example, this URL is rewritten:

http://subdomain.domain.com/Home/Feedback/tabid/123/Default.aspx

To be:

http://www.domain.com/Home/Feedback/tabid/123/Default.aspx?Home=Feedback

Argh!...