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OWA 2007 - Cannot find server or DNS Error

Posted on 2007-03-25
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Last Modified: 2012-06-27
We are having an issue with OWA 2007 for both internal and external access. We can get to the part where it prompts us for a username and password (http://mail.domainname.com/exchange), and that passes us to the SSL FQDN (https://server1.domainname.com/owa), but when we reach that page we get "Page cannot be displayed" followed by "Cannot find server or DNS Error" at the bottom. OWA was working fine until we had some server hiccups the other day which prompted us to rebuild TCP/IP in restore mode and installed Windows 2003 SP2. There are no issues with Exchange or Outlook for any clients, just OWA. Any help is appreciated.

Colin
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Question by:novoconst
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6 Comments
 
LVL 104

Expert Comment

by:Sembee
ID: 18792056
I wouldn't have rebuilt TCP/IP. Considering how Windows relies on TCP/IP, if something went wrong with the server I would have been looking to swing the data off the machine so that it could be rebuilt.
While you may have only seen TCP/IP errors, there is no way of knowing what other damage has been done to the system.
I suspect that something has happened elsewhere in the machine and Exchange cannot connect back to itself.
If you browse to https://server1.domain.com directly, does that work? If you browse to http://server1.domain.com does that work?
If you remove the SSL certificate, does OWA work then? It could be a corrupt SSL certificate. I have seen two of those on E2007 recently.

Simon.
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Author Comment

by:novoconst
ID: 18793036
I can browse to the root of the directory and get the typical "This page is under construction" with http, both internally and externally. With https, however, I get the same error message as described in my original post. What is the best way to remove/recreate the SSL certificate?

The server went through hell over the weekend, and it was MSFT's call to rebuild TCP/IP (they were NOT very helpful at all).

Colin
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LVL 104

Accepted Solution

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Sembee earned 1000 total points
ID: 18793076
Is the SSL certificate a commercial one or a home grown one?
What you could do is remove the certificate you currently have using IIS Manager (run the certificate wizard and choose remove the certificate).
Then use Exchange Management Shell to generate a new self generated certificate. That will let you see if the previous certificate is corrupt. If it is, and is a commercial certificate, then simply ask the issuer to reissue the certificate.

Simon.
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Author Comment

by:novoconst
ID: 18793096
It's a home grown cert. Will try what you say and see where it gets me.

Thanks.

Colin
0
 

Author Comment

by:novoconst
ID: 18793159
Hit a few stumbling blocks along  the way. I checked my services to make sure all the Certificate Services were working properly, and found that Certificate Services was not started. When I go to start the service, it fails with "Error 3: The system cannot find the path specified."

Will try a re-install through add/remove components, but definitely looks like we're heading in the right direction.

Colin
0
 

Author Comment

by:novoconst
ID: 18793390
Simon,

After re-installing the certificate services, I re-added the certificate for the site, restarted IIS, and web mail worked.

Thank you for all your help.

Colin
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