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Security Enhanced Linux (SELinux) is an open source project that integrates a general purpose Mandatory Access Control (MAC) security policy enforcement mechanism into UNIX/Linux based operating systems. It is supported by the National Security Agency (NSA) and an active open source community. It is included and enabled by default in the Red Hat Enterprise Linux (including RHEL clones, Scientific Linux and CentOS) and Fedora operating systems.
SELinux includes distinct MAC policy mechanisms: Type Enforcement (TE), Role Based Access Control (RBAC), and Multilevel Security (MLS). SELinux uses a text-based, scripting language to configure the behavior of all policies. Each policy may be customized by security administrators by modifying, compiling, and installing the policy script associated with a particular site. The SELinux policy may cover both operating system and DBMS objects and operations.
Trusted RUBIX integrates the SELinux policies into its DBMS, providing MAC security for all DBMS objects and operations. To learn more about the capabilities of Trusted RUBIX and SELinux please see the links at the bottom of this page.