Introductory Cyber Security | Module 5: Perimeter Protection and Intrusion Detection by Prakhar Chauhan | Learn Smarter
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Module 5: Perimeter Protection and Intrusion Detection

The module explores perimeter protection and intrusion detection, focusing on firewalls as critical network security components. It discusses various firewall architectures, such as packet-filtering and stateful inspection firewalls, as well as advanced techniques used in firewalls like next-generation firewalls (NGFWs). In addition, the importance of intrusion detection systems (IDS) and security information and event management (SIEM) systems for comprehensive security monitoring is emphasized.

Sections

  • 1

    Firewalls: The Network Perimeter's Cornerstone Of Defense

    Firewalls act as crucial gatekeepers at network boundaries, filtering traffic based on security policies to protect private networks from external threats.

    Learning Practice

  • 1.1

    In-Depth Analysis Of Firewall Architectures And Operational Principles

    This section delves into various firewall architectures, their operational principles, and their roles in network security.

    Learning Practice

  • 1.2

    Advanced Firewall Rules And Customization Techniques

    This section delves into the intricacies of designing firewall rules and customization techniques to ensure effective network security.

    Learning Practice

  • 2

    Intrusion Detection: Proactive Monitoring And Anomaly Identification

    This section discusses the role of Intrusion Detection Systems (IDS) in monitoring network and host activities to identify malicious actions and policy violations.

    Learning Practice

  • 2.1

    Host Intrusion Detection Systems (Hids): Deep Dive Into Host Activity

    Host-based Intrusion Detection Systems (HIDS) monitor and analyze activities on individual host machines to detect unauthorized access and malicious activities.

    Learning Practice

  • 2.2

    Security Information And Event Management (Siem) Tools: The Central Intelligence Hub

    SIEM systems aggregate and analyze security data from various sources to provide a comprehensive overview of security events, supporting real-time threat detection, compliance reporting, and forensic investigations.

    Learning Practice

  • 3

    Network Intrusion Detection Systems (Nids): Monitoring Network Traffic

    This section covers Network Intrusion Detection Systems (NIDS), focusing on their monitoring capabilities, detection methods, and operational principles.

    Learning Practice

  • 3.1

    Signature-Based Intrusion Detection (Pattern Matching)

    This section discusses the principles and mechanisms of signature-based intrusion detection systems that identify known threats using predefined patterns.

    Learning Practice

  • 3.2

    Behavior-Based Intrusion Detection (Anomaly-Based Ids)

    Anomaly-Based Intrusion Detection Systems (IDS) monitor network traffic to detect deviations from established 'normal' behavior, distinguishing potential threats from legitimate traffic.

    Learning Practice

  • 4

    Firewall Vs. Intrusion Detection/prevention Tool: A Synergistic Defense

    This section emphasizes the complementary roles of firewalls and intrusion detection/prevention systems (IDS/IPS) in establishing a robust security architecture.

    Learning Practice

  • 4.1

    The Synergy In Defense-In-Depth

    The synergy in defense-in-depth emphasizes the complementary roles of firewalls and intrusion detection/prevention systems for a robust security posture.

    Learning Practice

  • 5

    Module 5: Perimeter Protection And Intrusion Detection

    This module covers the essential concepts of perimeter protection using firewalls and intrusion detection systems (IDS), focusing on their architectures, functionalities, and interrelations in network security.

    Learning Practice

References

Untitled document (22).pdf

Class Notes

Memorization

What we have learnt

  • Firewalls serve as controll...
  • Different types of firewall...
  • Intrusion detection systems...

Final Test

Revision Tests