Linux/Unix Security1. SELinux (Security-Enhanced Linux)What It IsA Linux kernel security module that provides Mandatory Access Control (MAC) to enforce strict security policies.Key FeaturesLabels and PoliciesEvery file, process, and resource has a security context (e.g., user_u:role_r:type_t).Enforcing ModesEnforcing: Policies are applied, and violations are blocked.Permissive: Violations are lo..