Summary

This chapter provided Linux administrators with a deep understanding of SELinux modes and how they influence system security. We explored the concepts of enforcing and permissive modes and their significance in the context of Linux administration. Administrators need to learn to leverage these modes to strike a balance between security and system functionality, ensuring that SELinux policies are effectively enforced. This chapter also covered the crucial topic of enabling or disabling SELinux Boolean values. We delved into the reasons, importance, and practical use of SELinux Boolean values, demonstrating how they allow administrators to fine-tune security policies to meet specific system requirements. By enabling or disabling Boolean values, administrators gain flexibility in tailoring SELinux policies to their system’s needs while maintaining a high level of security. Another essential aspect of system security that we explored in this chapter was locking user accounts...