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I am the webmaster for an orgnaization that has a preferred domain and a subdomain. There are also several related domains (variations of the name) that are pointed to the preferred domain. We use ASP.NET on IIS7 and 2 loading balancing servers.

When I code a link from the subdomain to the preferred domain, and do not preface it with the "www", the server rewrites the domain to one of the related domains.

Example:
Preferred domain = mydomain.com (without the "www" prefix)
Subdomain = subdomain.mydomain.com
Related domain = my-domain.com

Link code in subdomain =
href="http://mydomain.com/subfolder/filesname.aspx"
What gets served =
href="http://my-domain.com/subfolder/filesname.aspx"
If the coded link contains the "www"
"http://www.mydomain.com/subfolder/filename.aspx"
it gets served exactly like that and does not get rewritten.

We prefer to not use the "www".

Any idea why this is happening and how to prevent it? I am not the server manager so please be gentle.
Posted 1-Mar-12 3:53am

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