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Brian Dorr

This course will teach you how to install and perform basic network analysis using the various plugins and packages with OPNsense.

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This course will teach you how to install and perform basic network analysis using the various plugins and packages with OPNsense.

Visibility into your network is essential to effectively discover or defend against attacks. Threat actors have a similar goal to gather as much intelligence as they can about their target network. The difference is an attacker will use that to plan an attack while a defender will use it to try and prevent or discover an attack. In this course, Network Analysis with OPNsense, you'll cover how to utilize OPNsense Firewall to secure a live enterprise environment. First, we’ll discuss installation methods and some basic features of OPNsense, and navigate the user interface to show and install the plugs-in and packages we need to conduct analysis. Next, we will configure Netflow v9, ntop, Suricata, and Zenarmor. Finally, we will use these tools to perform basic network analysis, highlighting the capabilities and differences of each. When you’re finished with this course, you’ll have the skills and knowledge to detect Active Scanning (T1595) and Network Service Discovery (T1046) using OPNsense with Netflow, Suricata, and Zenarmor (Sensei) to effectively recommend mitigations and appropriate response actions.

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What's inside

Syllabus

Course Overview
Performing Network Analysis with OPNsense
Resources

Good to know

Know what's good
, what to watch for
, and possible dealbreakers
Develops foundational skills for defending and protecting against attacks
Provides visibility into a network, which is crucial for threat detection and response
Covers essential tools and techniques like Netflow v9, ntop, Suricata, and Zenarmor
Teaches how to install and set up OPNsense Firewall in a live enterprise environment
Involves hands-on analysis and mitigation techniques for real-world scenarios
Taught by Brian Dorr, an experienced instructor in network security

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Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Network Analysis with OPNsense with these activities:
Network Analysis Resources Compilation
Expand your knowledge by gathering and organizing useful resources related to network analysis.
Browse courses on Network Analysis
Show steps
  • Search for articles, tutorials, videos, and other materials on network analysis.
  • Review and select the most relevant and informative resources.
  • Organize the resources into a digital or physical compilation for easy reference.
Practice Netflow Configuration
Practice configuring Netflow to gain hands-on experience with network analysis.
Browse courses on NetFlow
Show steps
  • Set up a virtual environment for practicing.
  • Install and configure Netflow on the virtual environment.
  • Generate network traffic and observe the Netflow data.
Explore Advanced Suricata Features
Enhance your understanding of Suricata by exploring advanced features and use cases.
Browse courses on Suricata
Show steps
  • Find tutorials or documentation on advanced Suricata features.
  • Follow the tutorials to configure and use these features in a practical environment.
  • Experiment with different scenarios to observe the impact of these features on network security.
One other activity
Expand to see all activities and additional details
Show all four activities
Develop a Network Analysis Report
Create a report that showcases your network analysis skills and provides valuable insights into network security.
Browse courses on Network Analysis
Show steps
  • Gather and analyze network traffic data using the tools learned in the course.
  • Identify security threats, vulnerabilities, and anomalies.
  • Write a comprehensive report summarizing your findings and recommendations for improvement.

Career center

Learners who complete Network Analysis with OPNsense will develop knowledge and skills that may be useful to these careers:
Penetration Tester
Penetration Testers assess the security of an organization's computer networks and systems by simulating cyber attacks. This course can help you develop the skills you need to succeed as a Penetration Tester by teaching you how to use OPNsense Firewall to detect and prevent attacks.
Cybersecurity Engineer
Cybersecurity Engineers design, implement, and manage the security of an organization's computer networks and systems. This course can help you develop the skills you need to succeed as a Cybersecurity Engineer by teaching you how to use OPNsense Firewall to detect and prevent attacks.
Network Security Engineer
Network Security Engineers plan and implement security measures to protect an organization's computer networks and systems from cyber attacks. This course can help you develop the skills you need to succeed as a Network Security Engineer by teaching you how to use OPNsense Firewall to detect and prevent attacks.
Security Analyst
Security Analysts investigate and respond to security incidents, and develop and implement security measures to protect an organization's computer networks and systems. This course can help build a foundation for a career as a Security Analyst by teaching you how to use OPNsense Firewall to detect and prevent attacks.
Information Security Analyst
Information Security Analysts help plan and carry out security measures to protect an organization's computer networks and systems from cyber attacks, unauthorized access, or data breaches. This course can help build a foundation for a career as an Information Security Analyst by teaching you how to use OPNsense Firewall to detect and prevent attacks.
Malware Analyst
Malware Analysts investigate and analyze malware to identify its behavior, origins, and potential impact. This course can help build a foundation for a career as a Malware Analyst by teaching you how to use OPNsense Firewall to detect and prevent malware attacks.
Incident Responder
Incident Responders investigate and respond to security incidents. This course can help build a foundation for a career as an Incident Responder by teaching you how to use OPNsense Firewall to detect and prevent attacks.
Security Consultant
Security Consultants help organizations assess and improve their security posture. This course can help you develop the skills you need to succeed as a Security Consultant by teaching you how to use OPNsense Firewall to detect and prevent attacks.
Network Administrator
Network Administrators manage and maintain an organization's computer networks and systems. This course can help you develop the skills you need to succeed as a Network Administrator by teaching you how to use OPNsense Firewall to monitor and manage network traffic.
Systems Administrator
Systems Administrators manage and maintain an organization's computer systems and software. This course can help you develop the skills you need to succeed as a Systems Administrator by teaching you how to use OPNsense Firewall to monitor and manage network traffic.
IT Manager
IT Managers plan and direct the activities of an organization's IT department. This course can help you develop the skills you need to succeed as an IT Manager by teaching you how to use OPNsense Firewall to monitor and manage network traffic.
Security Manager
Security Managers plan and direct the activities of an organization's security department. This course can help you develop the skills you need to succeed as a Security Manager by teaching you how to use OPNsense Firewall to monitor and manage network traffic.
Chief Information Security Officer (CISO)
Chief Information Security Officers (CISOs) are responsible for the overall security of an organization's information systems. This course can help you develop the skills you need to succeed as a CISO by teaching you how to use OPNsense Firewall to monitor and manage network traffic.

Reading list

We've selected six books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Network Analysis with OPNsense.
Provides a comprehensive overview of network monitoring, including different types of monitoring tools and techniques. It also covers advanced topics such as network traffic analysis and security monitoring.
Covers the fundamentals of firewalls and intrusion detection systems, providing a strong technical foundation for deploying and managing these security solutions.
Provides a comprehensive overview of network security and ethical hacking. It covers different types of network security threats and vulnerabilities, and provides case studies of real-world network security incidents.
Provides a comprehensive overview of computer networks, including network protocols, network architecture, and network security. It good resource for students who are new to computer networks.
Provides a comprehensive overview of hacking, including different types of hacking techniques and tools. It good resource for students who are interested in learning about the art of hacking.

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