My private collection of articles found on the net, i dont own them but they helped me.: Publishing Outlook Web Access with Microsoft Forefront TMG 2010 Part 2

Personal collection of useful articles found on the web, NOT for public use, just for MY quick reference. Just in case you created one.
   Specializing in Office Communications Server, Exchange, Active Directory ,TMG 2010, ISA 2006,System Center Operations Manager and Powershell

Publishing Outlook Web Access with Microsoft Forefront TMG 2010 Part 2

Configuring TMG 2010 for OWA 2010, On the TMG server a new firewall rule needs to be created
Remember to use the Exchange Publishing wizard that comes with TMG

The following screen shots are for my own reference but should give you an idea of what needs to be configured.
The Certificate itself is the one taken from the CAS server.
The SAN names need to contain the external url and internal server names to be used.

ie
If I wanted to combine both my OCS and Exchange certificate into one I would request the following SAN names

DNS Name=exch01
DNS Name=exch01.domain.mobi ----------mailbox server
DNS Name=exch02
DNS Name=exch02.domain.mobi
DNS Name=exchdag                    ----------- VIrtual name if I wanted to use one
DNS Name=exchdag.domain.mobi
DNS Name=domain.mobi            ------------- Domain name
DNS Name=autodiscover.domain.mobi     ------------ Discover service for external clients Outlook anywhere etc
DNS Name=owa.domain.mobi ----------------- OWA
DNS Name=sip.domain.mobi    ---------------- OCS clients
DNS Name=ocs.domain.mobi   ---------------- OCS address book