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OWA thru single Front-End server and two back-end servers ( Problem for some users )

Posted on 2006-06-01
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I have a two location setup.  The main location has a Front-end server in a DMZ (172.16.1.5) and a Back-end server on the LAN ( 192.168.1.5 ).  The remote location is connected via a VPN tunnel with one back-end server ( 192.168.2.5 ).  The problem is this:  Any users located on the remote Exchange server are unable to authenticate from the Internet when trying to use OWA on the Front-End server.  While users from the main site Exchange server can login to OWA just fine from the Internet.
All subnets have full connectivity thru the VPN.  All the back-end servers are Exchange 2003 SP2 Enterprise.  The Front-end is 2003 Standard.  OWA works if the remote server users access OWA on the remote server directly (192.168.2.5/exchange)

What could be the issue?  
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Question by:OLMECIAN
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by:xqs
ID: 16811177
The first thing that pops into my head when I read this is kerberos over UDP.
Here's an article that describes this a little bit: http://support.microsoft.com/?kbid=244474

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by:OLMECIAN
ID: 16811480
Thank you for the response.  I just corrected the issue right now just by restarting the Web server service on the Front-end server.  Who would of thought.
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