9.3 File and Directory Security

Content

• Overview and Objectives
  • Learning Objectives
• Advanced File Permissions and Special Bits
• Access Control Lists (ACLs) for Fine-grained Control
• File System Encryption with LUKS
• Common pitfalls
• Real-world context
• Recommended reading
• Assessment
  • Multiple Choice Questions
  • Short Answer Questions

This chapter is available exclusively to members of The Server Room, my DevOps community of practice. You have multiple options for taking this course, for example self-guided or instructor-led. Check out the course details to learn more!

Updated 2026-03-10