Book Image

Learn pfSense 2.4

By : David Zientara
Book Image

Learn pfSense 2.4

By: David Zientara

Overview of this book

As computer networks become ubiquitous, it has become increasingly important to both secure and optimize our networks. pfSense, an open-source router/firewall, provides an easy, cost-effective way of achieving this – and this book explains how to install and configure pfSense in such a way that even a networking beginner can successfully deploy and use pfSense. This book begins by covering networking fundamentals, deployment scenarios, and hardware sizing guidelines, as well as how to install pfSense. The book then covers configuration of basic services such as DHCP, DNS, and captive portal and VLAN configuration. Careful consideration is given to the core firewall functionality of pfSense, and how to set up firewall rules and traffic shaping. Finally, the book covers the basics of VPNs, multi-WAN setups, routing and bridging, and how to perform diagnostics and troubleshooting on a network.
Table of Contents (14 chapters)

Questions

  1. What is the final step in troubleshooting a networking problem?
  2. A site can be reached by pinging the IP address, but pinging the hostname fails. What is the likely cause?
  1. We cannot reach the internet from a computer, but we can access other nodes on the local network. Assume that we have isolated the problem to this computer. What is the likely cause?
  2. Name a wireless standard that uses the 5 GHz range (there are four).
  3. Which wireless encryption standard sends challenges in the clear and is generally considered insecure now?
  4. Name a utility that can be used to monitor the pfSense state table and can be used from the console or within the web GUI.
  5. What problem might we encounter if we try to ping hosts on networks not under our control?
  6. What protocol does traceroute use by default?