Book Image

pfSense 2 Cookbook

Book Image

pfSense 2 Cookbook

Overview of this book

pfSense is an open source distribution of FreeBSD-based firewall that provides a platform for flexible 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. Through this book you will see that pfSense offers numerous alternatives to fit any environment's security needs. pfSense 2.0 Cookbook is the first and only book to explore all the features of pfSense, including those released in the latest 2.0 version. With the help of step-by-step instructions and detailed screenshots of the pfSense interface you will be able to configure every general and advanced feature from creating a firewall rule to configuring multi-WAN failover. Each recipe includes tips and offers advice on variations of the topic or references to other related recipes and additional information that can be found from other sources. pfSense 2.0 Cookbook covers the gamut of available features and functionality. The first three chapters will take you from a non-existent system to a basic pfSense firewall. The next chapter focuses on configuring any number of the VPN services available, a very important and sought-after feature for anyone implementing a firewall. The following two chapters describe how to configure the most advanced features available in pfSense; features that may only be relevant to the most experienced network admins. Chapter 7 is dedicated to understanding and configuring the "grab-bag" of features that are available in pfSense, but are often stand-alone options and unrelated to each other. The first appendix explains how to use the status monitoring tools available for many of the features. The second appendix wraps up with helping you to decide how and where pfSense may be incorporated into your system and what type of hardware is required based on your throughput needs.
Table of Contents (16 chapters)
pfSense 2 Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Configuring a standalone DHCP/DNS server


This recipe describes how to configure pfSense as a standalone DHCP and DNS server.

How to do it...

  1. Configure pfSense as a DHCP Server. See the Configuring the DHCP server recipe for details.

  2. Create DHCP mappings for every device in the system that will obtain its IP address automatically through DHCP. See the Creating static DHCP mappings recipe for details.

  3. Browse to System | General Setup.

  4. Ensure that no other DNS servers are specified.

  5. Enable Allow DNS server list to be overridden by DHCP/PPP on WAN, so that pfSense can resolve external addresses using the DNS servers provided by your ISP through your WAN connection.

  6. Save the changes.

  7. Apply changes, if necessary.

  8. Browse to System | DNS Forwarder.

  9. Check Enable DNS Forwarder.

  10. Check Register DHCP static mappings in DNS forwarder.

  11. Create a Host record for any device that needs to be resolved but doesn’t have a DHCP mapping (that is, devices that define their own IP).

  12. Create a Domain record for any DNS requests...