Red Hat Enterprise Linux 9
Prevent users and processes from performing unauthorized interactions with files and devices by using Security-Enhanced Linux (SELinux)
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By configuring SELinux, you can enhance your system’s security. SELinux is an implementation of Mandatory Access Control (MAC), and provides an additional layer of security. The SELinux policy defines how users and processes can interact with the files on the system. You can control which users can perform which actions by mapping them to specific SELinux confined users.