SELinux System Administration - Third Edition

Chapter 3: Managing User Logins

When we log in to an SELinux-enabled system, we receive an SELinux context to work in. This context contains an SELinux user, an SELinux role, a domain, and optionally, a sensitivity range. As the SELinux user defines the roles and types that can be accessed, managing user logins and SELinux users is the first step in configuring end users on the system.

To enable properly configured users, we will learn to define users that have sufficient rights to do their jobs, ranging from regular users with strict SELinux protections to fully privileged administrative users with few SELinux protections. We will create and assign categories and sensitivities, as well as assign roles to users and use various tools to switch ...