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 --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.