Linux Administration

  1. System Security
    1. Principles of System Hardening
      1. Minimizing Attack Surface
        1. Disabling Unused Services
          1. Applying Security Updates
            1. Secure Configuration Practices
            2. Firewall Management
              1. Concepts of Firewalls
                1. Managing Rules with iptables
                  1. Using firewalld
                    1. Using ufw (Uncomplicated Firewall)
                      1. Opening and Closing Ports
                        1. Saving and Restoring Rules
                        2. Intrusion Detection and Prevention
                          1. Host-Based Intrusion Detection Systems (HIDS)
                            1. Monitoring Suspicious Activity
                              1. Security Auditing Tools
                              2. Security-Enhanced Linux (SELinux) and AppArmor
                                1. SELinux Concepts
                                  1. Modes
                                    1. Enforcing
                                      1. Permissive
                                        1. Disabled
                                        2. Policy Types
                                          1. Managing Contexts
                                          2. AppArmor Concepts
                                            1. Profiles and Modes
                                              1. Managing Profiles
                                              2. Basic Policy Management
                                                1. Allowing and Denying Access
                                                  1. Troubleshooting Denials
                                                2. Auditing and Logging
                                                  1. System Logs in /var/log
                                                    1. Log File Types
                                                      1. Log Rotation
                                                      2. Syslog and Rsyslog
                                                        1. Configuration and Management
                                                        2. Monitoring and Analyzing Logs

                                                      Previous

                                                      9. Storage Management

                                                      Go to top

                                                      Next

                                                      11. Shell Scripting and Automation