First we are going to become root sudo su Next we are going to join the realm. This should installed everything needed after you run the command below realm join domain.com --user domainadmin Permit all users to log in. realm permit --all Add user group as root nano /etc/sudoers Paste into above file %groupname@domain ALL=(ALL:ALL) ALL Allow sssd to create user directory nano /etc/pam.d/common-session Paste into above file session optional pam_mkhomedir.