Simple packet filters are becoming a thing of the past. Even the open-source domain is moving towards Next-Generation Firewalls. OPNsense is a top player when it comes to intrusion detection, application control, web filtering, and Antivirus.
The fourth edition of this book is available since May 2023 as printed book and e-book.
Take a look into the table of contents
No network is too insignificant to be spared by an attacker. Even home networks, washing machines, and smartwatches are under threat and require a secure environment.
Firewalls are a component of the security concept. They protect against known and emerging threats to computers and networks. A firewall offers the highest level of protection if its functions are known, its operation is simple, and it is ideally positioned in the surrounding infrastructure. OPNsense accepts the challenge and meets these criteria in different ways. This book is the ideal companion for understanding, installing, and setting up an OPNsense firewall.
Each chapter explains a real-world situation, describes the theoretical fundamentals, and presents a lab experiment for better understanding. Finally, it offers a solution using OPNsense methods and knowledge with a technical standpoint.
Chapter 12 High Availability is available as a free sample to sneak a peek into OPNsense.
Almost all chapters use the same network layout and the same IPv4/IPv6 addresses. The network diagram is available as a download in the format PDF or PNG.
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What's in the book? Take a look at the Table of Contents to reveal the covered topics.
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The complete configuration for rebuilding or understanding the OPNsense firewalls. The used scripts and the results of the measurements are also located there.
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The errata lists the mistakes in content and their correction.
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Contact the author by email
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Report an error by email