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Exchange 2010 CAS Insatllation

Medium Priority
Last Modified: 2012-08-13
I will be installing 2-2010 CAS Servers in and existing 2003 Exchange Organization.  The CAS servers will be configured into a CASArray.  Should I check the  "Internet Facing" option on both servers during setup?

Or should I wait until the CASArray is configured then configure the CASArray fot "Internet Facing"?  
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viveksahuLead Consultant


If you did not configure the external domain during the installation of the CAS roles, you can of course do so using the Exchange Management Shell (EMS) or via the property page of each vdir like it was possible in Exchange 2007. But Exchange 2010 also makes you do this via a new “Configure External Client Access Domain” wizard. This new wizard can be accessed simply by right-clicking on Client Access under the Server Configuration workspace in the Exchange Management Console (EMC)

Rajith EnchiparambilOffice 365 & Exchange Architect

You can do it either during installing the CAS role or later from the console. Not a big deal. You can install the CAS array after you have both CAS servers installed.

There is no real order, as long as all components are configured at some point.
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