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Introduction to Defensive Security and Monitoring

Fundamentals of Defensive Security

Network and System Monitoring Basics

Network Defense: Firewalls and IDPS

Understanding Firewalls

Introduction to Intrusion Detection and Prevention Systems (IDPS)

Security Information and Event Management (SIEM)

What is a SIEM?

Day-to-Day SIEM Operations

Device and Endpoint Hardening

Fundamentals of Device Hardening

Applying Basic Hardening Techniques

Knowledge Assessment: Quizzes

Quiz 1: Defensive Security and Monitoring Basics

Quiz 2: Firewalls and IDPS Functionality

Quiz 3: SIEM Fundamentals

Quiz 4: Device Hardening Principles

Quiz 5: Comprehensive Practical Scenarios

Course Feedback

Final Course Survey

Welcome to Defensive Security Operations: Firewalls, SIEM, and Device Hardening. In today's rapidly evolving digital landscape, organizations face an unprecedented number of cyber threats.

Welcome to Defensive Security Operations: Firewalls, SIEM, and Device Hardening. In today's rapidly evolving digital landscape, organizations face an unprecedented number of cyber threats. To combat these risks, skilled defensive security professionals—often known as the Blue Team—are absolutely essential. This comprehensive course is meticulously designed to equip you with the foundational knowledge and practical skills required to protect organizational assets, monitor network traffic, and respond to security incidents effectively. Throughout this engaging course, you will dive deep into the core components of a robust defensive security posture. You will explore the critical differences between offensive and defensive operations, and learn how to maintain network visibility through continuous system monitoring. We will guide you through the essential functions of network-based and host-based firewalls, as well as Intrusion Detection and Prevention Systems (IDPS). Furthermore, you will master the primary features of Security Information and Event Management (SIEM) tools, understanding log aggregation, dashboard visualization, and incident escalation protocols. Finally, the course covers vital device and endpoint hardening techniques, teaching you how to reduce attack surfaces, implement the principle of least privilege, and establish baseline security configurations. Whether you are starting your cybersecurity journey or looking to solidify your defensive skills, this course provides the hands-on insights needed to succeed in day-to-day security operations. Join us to build a resilient defense and advance your career in the cybersecurity industry.

Defensive Security Operations: Firewalls, SIEM, and Device Hardening

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            <p>In an era where cyber threats are increasingly sophisticated, establishing a robust defensive security posture is paramount for safeguarding organizational assets. This course provides a comprehensive exploration of the methodologies, daily responsibilities, and technical tools utilized by defensive security professionals. It begins by establishing a foundational understanding of blue team operations, emphasizing the critical role of continuous network and system monitoring. By distinguishing between normal baseline traffic and potentially suspicious activities, learners will develop the analytical skills necessary to maintain network visibility, interpret various system logs, and understand the core components that protect modern IT environments.</p>

<p>Building upon these foundational concepts, the curriculum delves into the practical implementation of network defense mechanisms, specifically focusing on firewalls and Intrusion Detection and Prevention Systems (IDPS). Learners will examine rule configurations, policy enforcement, and the operational differences between detection and prevention mechanisms. Furthermore, the course demystifies Security Information and Event Management (SIEM) systems, illustrating how log aggregation, data correlation, and centralized dashboards streamline day-to-day security operations and incident escalation. Finally, the program addresses endpoint security through rigorous device hardening techniques. By applying the principle of least privilege, managing patches, and disabling unnecessary services, participants will learn to systematically reduce the attack surface, culminating in a series of comprehensive knowledge assessments designed to validate their defensive capabilities.</p>
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