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Mastering pfSense

You're reading from   Mastering pfSense Manage, secure, and monitor your on-premise and cloud network with pfSense 2.4

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Product type Paperback
Published in May 2018
Publisher
ISBN-13 9781788993173
Length 450 pages
Edition 2nd Edition
Tools
Concepts
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Author (1):
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David Zientara David Zientara
Author Profile Icon David Zientara
David Zientara
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Table of Contents (15) Chapters Close

Preface 1. Revisiting pfSense Basics FREE CHAPTER 2. Advanced pfSense Configuration 3. VLANs 4. Using pfSense as a Firewall 5. Network Address Translation 6. Traffic Shaping 7. Virtual Private Networks 8. Redundancy and High Availability 9. Multiple WANs 10. Routing and Bridging 11. Extending pfSense with Packages 12. Diagnostics and Troubleshooting 13. Assessments 14. Another Book You May Enjoy

Chapter 4 – Using pfSense as a Firewall

  1. The principle of least privilege.
  2. Block will drop traffic silently, while Reject will send back a packet (RST for TCP or ICMP Port Unreachable for UDP).
  3. We will be able to connect to Recode; the block rule will have no effect because it was placed after the "Allow LAN to any" rule.
  1. We will not be able to connect to Recode; the block rule will match the traffic to Recode before the “Allow LAN to any” rule.
  2. (a) We will not be able to connect to Recode; the new “default allow” rule will be invoked after the block rule. (b) We will be able to connect to Recode; the new "default allow" rule will be invoked before the block rule. (c) The default "Allow LAN to any" rules have no effect on traffic flow anymore because they are never reached; the floating "default allow&quot...
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