FreeIPA: Identity Management done right!
The talk will introduce FreeIPA project as the first fully functional open source centralized authentication and identity management solution, comparable to Active Directory, but using open source standards like 389ds, openssl, kerberos and more.
Three basic demonstrations usually fit in the time allotted. Installation, configuration of a client and sudo access. I'll likely be demonstrating IPA 3.x, but 4.x just went alpha so it could get exciting if I went that way. :)