Book Image

pfSense 2.x Cookbook - Second Edition

By : David Zientara
Book Image

pfSense 2.x Cookbook - Second Edition

By: David Zientara

Overview of this book

pfSense is an open source distribution of the FreeBSD-based firewall that provides a platform for ?exible and powerful routing and firewalling. The versatility of pfSense presents us with a wide array of configuration options, which makes determining requirements a little more difficult and a lot more important compared to other offerings. pfSense 2.x Cookbook – Second Edition starts by providing you with an understanding of how to complete the basic steps needed to render a pfSense firewall operational. It starts by showing you how to set up different forms of NAT entries and firewall rules and use aliases and scheduling in firewall rules. Moving on, you will learn how to implement a captive portal set up in different ways (no authentication, user manager authentication, and RADIUS authentication), as well as NTP and SNMP configuration. You will then learn how to set up a VPN tunnel with pfSense. The book then focuses on setting up traffic shaping with pfSense, using either the built-in traffic shaping wizard, custom ?oating rules, or Snort. Toward the end, you will set up multiple WAN interfaces, load balancing and failover groups, and a CARP failover group. You will also learn how to bridge interfaces, add static routing entries, and use dynamic routing protocols via third-party packages.
Table of Contents (18 chapters)
Title Page
Copyright and Credits
About Packt

Appendix 2. Determining Hardware Requirements

One of the keys to getting the most out of pfSense at a reasonable cost is to spend some time on hardware sizing and selection. It is entirely possible that you may already have hardware, such as an old desktop computer, that you can repurpose for use with pfSense. But even in these cases, it is beneficial to start by determining exactly what you need from your pfSense firewall.

With pfSense, we are presented with a wide array of configuration choices that can make a determination of minimum requirements somewhat difficult. It will run well on state-of-the-art hardware, but often this is not the most cost-effective option. In this chapter, we will discuss some of the factors we consider when deciding which hardware to use. By presenting these factors as a series of recipes, we can follow a step-by-step approach, an approach that tends to ensure the hardware we use is capable of getting the job done at a reasonable cost.

In this chapter, we will cover the following topics:

  • Determining our deployment scenario
  • Determining our throughput requirements
  • Determining our interface requirements
  • Choosing a standard or embedded image
  • Choosing a form factor