Book Image

OPNsense Beginner to Professional

By : Julio Cesar Bueno de Camargo
5 (1)
Book Image

OPNsense Beginner to Professional

5 (1)
By: Julio Cesar Bueno de Camargo

Overview of this book

OPNsense is one of the most powerful open source firewalls and routing platforms available. With OPNsense, you can now protect networks using features that were only previously available to closed source commercial firewalls. This book is a practical guide to building a comprehensive network defense strategy using OPNsense. You’ll start with the basics, understanding how to install, configure, and protect network resources using native features and additional OPNsense plugins. Next, you’ll explore real-world examples to gain in-depth knowledge of firewalls and network defense. You’ll then focus on boosting your network defense, preventing cyber threats, and improving your knowledge of firewalling using this open source security platform. By the end of this OPNsense book, you’ll be able to install, configure, and manage the OPNsense firewall by making the most of its features.
Table of Contents (25 chapters)
1
Section 1: Initial Configuration
6
Section 2: Securing the Network
13
Section 3: Going beyond the Firewall

Basic configuration

We'll start the basic web proxy configuration by heading the browser to the Services | Web Proxy | Administration page. The default tab is General Proxy Settings, as illustrated in the following screenshot:

Figure 13.3 – Web Proxy | Administration page

As the web proxy has several configuration pages with tons of options, it unfortunately isn't possible to describe every configuration option, as done in the other chapters. Otherwise, this chapter would have hundreds of pages, and the editors would be crazy with me. Still, I'll try to cover the most relevant options (based on my experience) to explore the main web proxy functionalities.

Let's start by describing the main configuration options, as follows:

  • Enable proxy: Check this option to start the web proxy service.
  • User error pages: This is a recent feature, and it is a cool one! Before this feature was implemented, Squid error pages were only...