Keeping SELinux active

SELinux, or Security-Enhanced Linux, is a security module that provides mandatory access control (MAC) policies in the Linux kernel. It is needed because it offers a higher level of security for Linux systems by enforcing strict rules on what processes and users can do on the system. By default, Linux uses discretionary access control (DAC), which means that any user or process can access any file or resource, as long as they have the appropriate permissions. This can lead to security vulnerabilities, as any compromised process or user can potentially access and modify sensitive data or system files.

SELinux adds an extra layer of security by enforcing mandatory access control policies that restrict access to files and resources based on the security context of the process or user. This means that even if a process or user has the appropriate permissions, they will only be able to access resources that are explicitly allowed by the SELinux policy.

This...