Is it possible to setup a 2nd OWA site on the same one Excahnge Server?  How?

Posted on 2008-11-10
Last Modified: 2012-05-05
II have a predicament:  we setup a 3rd party exchange archival system by Mimosa, Nearpoint.  All is good except that now I need it to work with OWA.  All was simple until I enabled OWA over SSL and got my organization a simple SSL certificate for the IIS; installed it and tested it and is running fine:  accessing OWA from public domain recognizes the certificate and communication works as it should over SSL.
 However, Mimosa Nearpoint cannot communicate with OWA server because of the internal vs. external naming differences. The certificate is for while the netbios internal name is server (simplified for here only).  So the connection is refused.
Now I tried with the CA to get a multi domain certificate& to make it short, after some misdirection, IIS over Windows 2003 and Exchange 2003 do not support UCC.  So I am back to the only possible solution I can think of:  setup a 2nd OWA website on the same server with its own internal SSL Cert.
Is this possible?  Any one now of an article for that (I was not able to locate one on MS/KB).
(BTW:  it behooves me that Mimosa cannot solve this&  still trying with them as well.)
Question by:InWoods
    LVL 31

    Expert Comment

    You can add another site in Exchange System Manager.  One thing you might try first, though, is not requiring SSL on the original Default Web Site.  I know this sounds less secure, but if you then only allow port 443 in to the server, rather than both 80 and 443, then this will have the same effect.  Of course, it also means that users on the LAN will be able to access OWA without SSL.  But not from the WAN.  SSL doesn't have to be actually 'required' in order for it to be used for a client connection.

    Author Comment

    not sure that i fully understand.  if i take port 80 out of the allowed ports on the IIS Excahnge server then every one will have to access thrue HTPPS protocl, including internal LAN users.

    Regarding 2nd site:  is there a special procedure for setting up a second site for OWA?  just creating another web site on IIS is trivial.

    LVL 31

    Accepted Solution

    I meant only allow port 443 (i.e. remove 80) at the firewall/router, not at the server.

    Creating a second OWA site should be done in ESM, not IIS Manager (it's possible, but more complicated).  To add it in ESM, you need to find Servers/<server>/Protocols/HTTP , and add another Virtual Server, which will then be copied (along with its special properties) in IIS Manager soon after.

    Author Comment

    ahhh ok on both.  
    makes scense:  restict the port on the firewall... is already done.  Thrue,

    got is:  crate new Virtual Server in ESM.  simple enought.


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