Security

• permissions
  • chmod
  • Special Permission Bits
  • File Attributes
  • UMASK
  • Access Control Lists
  • Manage ACLs on a File
  • Default ACLs
  • ACL and Masks
• firewall
  • The firewalld Service
• encryption
  • Basic Encrypted Communication
• selinux
  • Basic Features of SELinux
  • SELinux Status
  • Basic SELINUX Configuration and Settings
  • Setting Context Types (Essentials for RHCSA !)
  • Finding the Context Type You Need
  • Configure Regular Users for SELinux (not needed for RHCSA !)
  • Manage SELinux Boolean Settings
  • List and Identify SELinux File Contexts
  • Restore SELinux File Contexts
  • Identify SELinux Process Contexts
  • Diagnose and Address SELinux Policy Violations
  • The GUI SELinux Administration Tool