Chapter 1: An OPNsense Overview

This chapter will introduce you to the OPNsense project, tell you about its history, license, and fork motivations, and where you can find help if you need it. Before installing and configuring your own OPNsense installation, it is essential to learn about some concepts and how the OPNsense project was started. We will also learn about FreeBSD, and its fork, HardenedBSD, exploring OPNsense features and the typical deployments scenarios that we can use it.

In this chapter, we're going to cover the following main topics:

  • About the OPNsense project
  • Rock-solid FreeBSD – HardenedBSD
  • Why OPNsense?
  • Features and common deployments
  • Getting help

About the OPNsense project

To introduce you to the OPNsense project, ...

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