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Content-location http header errors divulged DMZ/internal IP address

Posted on 2011-09-19
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I've had an external security audit recently done and I'm having some trouble with one of the items they cited as a security concern.  It is for an Exchange 2003 OWA server, here is what they wrote:

Content-location http header” errors divulged DMZ/internal IP address xxx.xxx.xxx.xxx for device with external address xxx.xxx.xxx.xxx.  Auditor recommends configuring the web servers to not disclose specific information.

I looked this up and found this KB Article:
http://support.microsoft.com/kb/834141

I already have all service packs applied so I entered the command as directed with the following variables:
cscript adsutil.vbs set w3svc/1/SetHostName exchange

This broke something in DNS and I couldn't load the page at all.  Fortunately I had backed up the metabase right before so was able to do a full restore.  Unfortunately none of the icons on the page would load which turned out to be an authentication problem but I was able to correct that.

Obviously making that change caused some kind of DNS problem but I'm not sure what variable I should replace "exchange" with in order to both fix the problem and allow OWA to continue operating.  Any advice would be appreciated.
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