Tasks
=====
 - required packages: ssd-ldap
    * nice tool to manage stuff is realmd (but it only can be used by Activer directory admins, so not for KIT)

 - prepare space for home directories
    * /home/kit.edu should be created (and optionally mounted to NFS)

 - Automate home creation
    * Either run
        authconfig --enablemkhomedir --update
    * Or  copy script and add in the end of /etc/pam/sshd
        session    optional     pam_exec.so /usr/local/bin/login_script.sh


Considerations
==============
 - sssd files should belong to root and has 0600 access.