Can I use a single ADFS server for both office 365 and SharePoint SSO if they use different SSL's and domain names?
Enviroment consists of:
2 DC's -- ADFS Server -- ADFS Proxy -- Sharepoint 2010 Server (portal.companyname.com) -- hosted o365 (companynameMail.com)
o365 SSO is currently working flawlessly (after a LOT of work) I want to add SSO for our SharePoint server.
I'm unclear if its possible, and stuck at adding in a second SSL on the ADFS server.
(And yes, I will be adding redundent servers as time and budget permits)
I am not sure I understand the problem here. I have a lab environment where my AD FS 2.0 is used for many relying parties including O365 and a SP2010 server.
Are you asking if its possible to use the existing ADFS infrastructure used for O365 with the on-premise SharePoint 2010 implementation? Yes thats possible. You will end up with two relying party trusts (one for O365 and the other for SP2010).
Edit 28/12: I assume you know how to configure SP2010 for federated authentication. Please see http://blogs.technet.com/b/speschka/archive/2010/07/30/configuring-sharepoint-2010-and-adfs-v2-end-to-end.aspx as it should help.