[Users] Single Sign On (Kerberos) to the user portal

Hi, Is it possible to do Single Sign On to the user portal using Kerberos? We have deployed FreeIPA where all our workstations are authenticating. We are already using SSO w/kerberos for web servers, and it would be handy if we could use SSO w/kerberos to authenticate to the User Portal too. Regards, Siggi