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Implementing Mandatory Access Control with SELinux or AppArmor in Linux

To overcome the limitations of and to increase the security mechanisms provided by standard ugo/rwx permissions and access control lists, the United States National Security Agency (NSA) devised a flexible Mandatory Access Control (MAC) method known as SELinux (short for Security Enhanced Linux ) in order to restrict among other things

Originally Published at Implementing Mandatory Access Control with SELinux or AppArmor in Linux