SELinux (Security-Enhanced Linux) is a security architecture for Linux systems that provides a mechanism for supporting access control security policies. It implements mandatory access control (MAC), which restricts how processes interact with each other and with files based on defined policies.
Key Features:
- Access Control: Enforces policies that determine which users and processes can access specific resources.
- Policy Enforcement: Uses a set of rules to define permissions for processes and users.
- Isolation: Helps contain potential security breaches by limiting the actions of compromised processes.
SELinux can operate in different modes:
- Enforcing: Policies are enforced, and violations are blocked.
- Permissive: Policies are not enforced, but violations are logged.
- Disabled: SELinux is turned off.
For more detailed information, you can refer to the official SELinux documentation or relevant resources. Let me know if you have more questions!
