FAQ: Kerberos Support for XenDesktop 7.x
Q: Does StoreFront 3.5 support configuring Kerberos authentication with XenDesktop 7.8? A : XenApp 6.5 supports Kerberos but XenDesktop 7.x does not. Going forward Kerberos will be replaced with Virtual Smart cards. This is because of the newer FMA architecture and Microsoft's SAM architecture...