Book Image

Mastering pfSense - Second Edition

By : David Zientara
Book Image

Mastering pfSense - Second Edition

By: David Zientara

Overview of this book

pfSense has the same reliability and stability as even the most popular commercial firewall offerings on the market – but, like the very best open-source software, it doesn’t limit you. You’re in control – you can exploit and customize pfSense around your security needs. Mastering pfSense - Second Edition, covers features that have long been part of pfSense such as captive portal, VLANs, traffic shaping, VPNs, load balancing, Common Address Redundancy Protocol (CARP), multi-WAN, and routing. It also covers features that have been added with the release of 2.4, such as support for ZFS partitions and OpenVPN 2.4. This book takes into account the fact that, in order to support increased cryptographic loads, pfSense version 2.5 will require a CPU that supports AES-NI. The second edition of this book places more of an emphasis on the practical side of utilizing pfSense than the previous edition, and, as a result, more examples are provided which show in step-by-step fashion how to implement many features.
Table of Contents (15 chapters)

Chapter 8 – Redundancy and High Availability

  1. Any three of these: random, round robin, weighed round robin, least connection, least traffic, least latency, IP hash, URL hash, SDN adaptive.
  2. Client-side load balancing: easy to implement and effective. Server-side load balancing: better able to guarantee load balancing; transparent to client; more secure; we can provide a message to client when all servers are down.
  3. Load balancing and Failover.
  1. The most likely cause is that I forgot to update the alias for the server pool to include the new server. Since the firewall rule to allow traffic to pass to the server pool uses this alias, it allows traffic to pass to every server except the new one.
  2. (a) Yes; (b) no; (c) yes; (d) no.
  3. No; we do not have to create a virtual IP for the PFSYNC interface because use it to pass synchronization data between firewalls; we don’t want...