More videos like this online at http://www.theurbanpenguin.com/ In this video we look at the user dtabases in Oracle Solaris 11, /etc/passwd, /etc/shadow, /etc/group and /etc/user_attr. We look at the 3 user id and groups id associated with a running process. The Real, Set and Effective UID and GID. We then look at how roles can be used to help controll access to the system. Only users with the root roles and use the su command and we demonstrate how the role can be assigned.