You're reading from OPNsense Beginner to Professional Protect networks and build next-generation firewalls easily with OPNsense

Product type Paperback

Published in Jun 2022

Publisher Packt

ISBN-13 9781801816878

Length 464 pages

Edition 1st Edition

Tools

FreeBSD

Concepts

Network Security

Author (1):

Julio Cesar Bueno de Camargo

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Table of Contents (25) Chapters

Preface

1. Section 1: Initial Configuration

2. Chapter 1: An OPNsense Overview FREE CHAPTER

3. Chapter 2: Installing OPNsense

4. Chapter 3: Configuring an OPNsense Network

5. Chapter 4: System Configuration

6. Section 2: Securing the Network

7. Chapter 5: Firewall

8. Chapter 6: Network Address Translation (NAT)

9. Chapter 7: Traffic Shaping

10. Chapter 8: Virtual Private Networking

11. Chapter 9: Multi-WAN – Failover and Load Balancing

12. Chapter 10: Reporting

13. Section 3: Going beyond the Firewall

14. Chapter 11: Deploying DHCP in OPNsense

15. Chapter 12: DNS Services

16. Chapter 13: Web Proxy

17. Chapter 14: Captive Portal

18. Chapter 15: Network Intrusion (Detection and Prevention) Systems

19. Chapter 16: Next-Generation Firewall with Zenarmor

20. Chapter 17: Firewall High Availability

21. Chapter 18: Website Protection with OPNsense

22. Chapter 19: Command-Line Interface

23. Chapter 20: API – Application Programming Interface

24. Other Books You May Enjoy

DNS plugins

One of the features that make OPNsense an extremely flexible system is the plugin additions. To extend DNS core features, we can install some plugins developed by the OPNsense community. Let’s take a look at some of these available DNS plugins, as follows:

BIND (os-bind): The Internet Systems Consortium (ISC) Berkeley Internet Domain (BIND) is one of the most used DNS servers on the modern internet. It is a complete DNS server that can host several domain zones. On OPNsense, its implementation is focused on forwarder/resolver and blocklist capabilities. To install it, add the os-bind plugin.
DNSCrypt Proxy (os-dnscrypt-proxy): DNSCrypt version 2 is a powerful DNS proxy that supports many features such as DoH and anonymous queries. The OPNsense implementation also allows DNS filtering (blocklists), and it can be a good alternative to dnsmasq or even Unbound in special cases. To install it, add the os-dnscrypt-proxy plugin.