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OMA - IIS - NetBIOS

Posted on 2006-10-30
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Last Modified: 2012-05-05
I have an Exchange FE/BE 2003 Service Pack 2 environment running on Windows Server 2003. I am experiencing OMA issues which led me to this Microsoft Support Article - http://support.microsoft.com/kb/898131 - this explain my issue exactly the only problem is I have an underscore in my server's NetBIOS name, and IIS will not allow me to enter this as a valid Host Header value. Does anyone have any ideas or suggestions around this (other than renaming my server)?

Thank you for any ideas you may have,

Jack
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Question by:Jack_French
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by:Sembee
ID: 17834718
Are you using SSL?
If not, why not?

If you were using SSL then this wouldn't be an issue as you cannot use host headers with SSL.

Which server has the underscore in it? The frontend or the backend?

Simon.
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by:Jack_French
ID: 17834836
Yes, I am using SSL on the front end, and both the FE and the BE have an underscore.  Why do you feel this would not be an issue?

Jack
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by:Sembee
ID: 17834987
You can't use host headers with SSL.
The KB article that you have pointed to (Which is all that I have to go on) indicates that the problem is caused by host headers.
If you are using host headers then remove them - as they are of little use.

Simon.
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by:Jack_French
ID: 17835028
I am not using Host Headers, the KB article I understood as telling me I needed to add the NetBIOS name to a newly created host header.

• The host header for the OMA Web site does not include the NetBIOS name of the Exchange 2003 computer.  
The incoming requests are made to the /OMA virtual directory on the Exchange 2003 computer. These requests try to communicate by using the NetBIOS name of the /Exchange virtual directory. If the host header for the OMA Web site does not include the NetBIOS name, you receive the message that is mentioned in the Symptoms section.

thoughts?

jack
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by:Sembee
ID: 17835165
You are looking at the solution, not the problem.

You don't need to use host headers to get OMA to work. I have OMA on at least a dozen servers and not one of them are using host headers. Host headers are not compatible with SSL, and as all of my deployments use SSL, it isn't something I have had to look at.

The article contains two conditions - the use of host headers, and the missing host header. If you are not using host headers at all then you fail to meet those conditions.

Simon.
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by:Jack_French
ID: 17835209
Then that leads me to the obvious next question. Have you received that error as stated in the KB article before?

Also, are you using Forms Based Authen. with SSL, in a FE/BE scenario anywhere and having issues with Active Sync or OMA?

Jack
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Sembee earned 500 total points
ID: 17835322
FE/BE scenarios with OMA/EAS, SSL and FBA are usually trouble free. The problems come in single server deployments. I have three or four that are working fine.

If you are getting the error in OMA, then that is usually associated with an error in the event viewer of the server at roughly the same time.

Simon.
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by:Jack_French
ID: 17835349
I have looked, I will dig deeper and possibly post again once I have a better handle on it. Thank you for your time.

Jack
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