SELinux on Red Hat Enterprise Linux

By default, Security Enhanced Linux (SELinux) is enabled and set to enforcing mode for AppStream 2.0 image builders and streaming instances powered by Red Hat Enterprise Linux. In enforcing mode, permission denials are enforced. SELinux is a collection of kernel features and utilities to provide a strong, flexible, mandatory access control (MAC) architecture to the major subsystems of the kernel.

SELinux provides an enhanced mechanism to enforce the separation of information based on confidentiality and integrity requirements. This separation of information reduces threats of tampering and bypassing of application security mechanisms. It also confines damage that can be caused by malicious or flawed applications.

SELinux includes a set of sample security policy configuration files that's designed to meet everyday security goals. For more information about SELinux features and functionality, see What is SELinux?