Network Security and Defense

  1. Network Perimeter Security
    1. Firewall Technologies
      1. Firewall Architectures
        1. Bastion Host Configuration
          1. Screened Host Design
            1. Screened Subnet Implementation
              1. Dual-Homed Host Setup
              2. Firewall Types
                1. Packet-Filtering Firewalls
                  1. Stateless Filtering
                    1. Access Control Lists
                      1. Performance Characteristics
                      2. Stateful Inspection Firewalls
                        1. Connection State Tracking
                          1. Dynamic Rule Generation
                            1. Session Management
                            2. Application-Layer Firewalls
                              1. Proxy Server Functions
                                1. Deep Packet Inspection
                                  1. Application Protocol Analysis
                                  2. Next-Generation Firewalls
                                    1. Integrated Security Services
                                      1. User Identity Integration
                                        1. Threat Intelligence Integration
                                      2. Firewall Management
                                        1. Rule Creation and Optimization
                                          1. Policy Hierarchy Management
                                            1. Change Control Procedures
                                              1. Performance Monitoring
                                                1. Log Analysis and Reporting
                                              2. Intrusion Detection and Prevention
                                                1. IDS vs IPS Comparison
                                                  1. Detection-Only Systems
                                                    1. Active Prevention Capabilities
                                                      1. Deployment Considerations
                                                        1. Performance Impact
                                                        2. Detection Methodologies
                                                          1. Signature-Based Detection
                                                            1. Pattern Matching Algorithms
                                                              1. Signature Database Management
                                                                1. Update Mechanisms
                                                                2. Anomaly-Based Detection
                                                                  1. Baseline Establishment
                                                                    1. Statistical Analysis
                                                                      1. Machine Learning Applications
                                                                      2. Heuristic-Based Detection
                                                                        1. Behavioral Analysis
                                                                          1. Rule-Based Logic
                                                                            1. Adaptive Learning
                                                                          2. System Deployment Types
                                                                            1. Network-Based Systems
                                                                              1. Traffic Monitoring Points
                                                                                1. Sensor Placement Strategies
                                                                                  1. Network Tap Implementation
                                                                                  2. Host-Based Systems
                                                                                    1. Agent Installation
                                                                                      1. Local Event Monitoring
                                                                                        1. System Integration
                                                                                      2. Operational Considerations
                                                                                        1. False Positive Management
                                                                                          1. False Negative Mitigation
                                                                                            1. Alert Correlation
                                                                                              1. Response Automation
                                                                                            2. Unified Threat Management
                                                                                              1. Integrated Security Functions
                                                                                                1. Firewall Integration
                                                                                                  1. Antivirus Services
                                                                                                    1. Content Filtering
                                                                                                      1. VPN Services
                                                                                                      2. Deployment Benefits
                                                                                                        1. Simplified Management
                                                                                                          1. Cost Effectiveness
                                                                                                            1. Centralized Reporting
                                                                                                            2. Limitations and Challenges
                                                                                                              1. Single Point of Failure
                                                                                                                1. Performance Bottlenecks
                                                                                                                  1. Feature Depth Concerns

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                                                                                                              3. Threat Landscape Analysis

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                                                                                                              5. Secure Network Design and Architecture