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pfSense 2.x Cookbook

You're reading from pfSense 2.x Cookbook Manage and maintain your network using pfSense

Product type Paperback

Published in Dec 2018

Publisher

ISBN-13 9781789806427

Length 298 pages

Edition 2nd Edition

Tools

pfsense

Concepts

Network Security

Author (1):

David Zientara

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Table of Contents (13) Chapters

Preface

1. Initial Configuration

2. Essential Services FREE CHAPTER

3. Firewall and NAT

4. Additional Services

5. Virtual Private Networking

6. Traffic Shaping

7. Redundancy, Load Balancing, and Failover

8. Routing and Bridging

9. Services and Maintenance

10. Backing Up and Restoring pfSense

11. Determining Hardware Requirements

12. Other Books You May Enjoy

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Using pfTop

pfTop is available in both the web GUI (via Diagnostics | pfTop) and from the console/SSH (where pfTop is 9 on the console menu). pfTop is extremely useful because it provides a live view of the state table, as well as the total amount of bandwidth utilized by each state.

pfTop contains several column headings; here, we will enumerate each of the default headings. PR stands for protocol; D stands for direction (this can be in or out); SRC stands for source; and DEST stands for destination. AGE is how long since the entry was generated. EXP is when the entry expires; PKTS is the number of packets that have been handled by the rule; and BYTES is the number of bytes handled by the rule.

The STATE column provides a little less clarity. This column indicates the state of both sides of the connection, using the format client:server. The states will not fit into an 80-column computer display, so pfTop uses integers (for example, 1:0). This is what the numbers in the following table signify...

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Authors (1)

David Zientara

David Zientara

David Zientara is a software engineer living in northern New Jersey. He has over 20 years of experience in IT. In the mid-1990s, David became the lead software engineer for Oxberry LLC, a digital imaging company headquartered in New Jersey. In this capacity, he played a major role in developing a new software package for the company's equipment. In the mid-2000s, David took an interest in computer networking, an interest that led him to learn about m0n0wall and, eventually, pfSense. David currently is employed with the Prasad Corporation in a consulting position and is also the author of Learn pfSense 2.4 and Mastering pfSense 2.4, also available from Packt Publishing.

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