Red Hat RHCSA 9 Cert Guide: EX200

Chapter 22

Managing SELinux

The following topics are covered in this chapter:

• Understanding SELinux Working Modes

• Understanding Context Settings and the Policy

• Restoring Default File Contexts

• Managing Port Access

• Using Boolean Settings to Modify SELinux Settings

• Diagnosing and Addressing SELinux Policy Violations

The following RHCSA exam objectives are covered in this chapter:

• Set enforcing and permissive modes for SELinux

• List and identify SELinux file and process context

• Restore default file contexts

• Use Boolean settings to modify system SELinux settings

• Diagnose and address routine SELinux policy violations

• Manage SELinux port labels

Since the earliest days of Linux, file permissions have been the standard method of securing Linux systems. ...