The goal is to setup SSO with with an external company that hosts our data. I've just setup ADFS 2012 R2 in our network but what I'm not clear on is which SSL cert should I upload. Our internal AD domain for example is "domaininc.com" but our external domain to access the data from outside is "domainsys.com".
So basically, which SSL should be used to setup ADFS? domaininc or domainsys?