Episode 101 — SELinux failures: policy vs context vs booleans, how to think, not panic
Linux+ tests SELinux failures because they expose whether you can troubleshoot secure systems without disabling controls. This episode frames SELinux problems in three buckets: policy decisions that intentionally restrict actions, context labeling issues where files or processes have the wrong type, and booleans that toggle common allowances without rewriting policy. You’ll learn how the exam expects you to “think, not panic”: if traditional permissions look correct but access is still denied, SELinux is a likely factor, and the right response is to identify the denial cause rather than turning enforcement off. The goal is to help you interpret SELinux-related symptoms as consistent, explainable decisions made by labels and rules, not as unpredictable randomness.
we apply a calm troubleshooting workflow that aligns with PBQs and real operations. You’ll practice confirming whether the denial is truly SELinux-related, then deciding whether the correct fix is restoring the proper context, enabling a targeted boolean, or adjusting the service to use an approved path and port. We also cover common exam traps: making a change that works temporarily but doesn’t persist, or “fixing” by broadly relaxing policy when a narrow adjustment would preserve security. Finally, you’ll learn best practices that keep SELinux manageable: standardize service paths, document intentional deviations, validate after updates that may relabel or change policy behavior, and treat SELinux denials as useful evidence of misalignment between configuration and approved operation. Produced by BareMetalCyber.com, where you’ll find more cyber audio courses, books, and information to strengthen your educational path. Also, if you want to stay up to date with the latest news, visit DailyCyber.News for a newsletter you can use, and a daily podcast you can commute with.
