| Description |
1 online resource (464 pages) |
| Contents |
Cover -- Title Page -- Copyright and Credits -- Dedication -- Contributors -- Table of Contents -- Preface -- Section 1: Initial Configuration -- Chapter 1: An OPNsense Overview -- About the OPNsense project -- Project history -- A new project with a lot of improvements on old code -- Rock-solid FreeBSD -- HardenedBSD -- FreeBSD -- Why OPNsense? -- My personal experience -- Features and common deployments -- Core features -- Common deployments -- Where to get help? -- Some facts -- Summary -- Chapter 2: Installing OPNsense -- Technical requirements -- Versions and requirements -- Versioning |
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Hardware -- Downloading and installing OPNsense -- Configuring VirtualBox to install OPNsense -- Mounting the OPNsense ISO file -- Installing OPNsense -- Unmounting the ISO installation file -- Setting up a LAN network -- Configuring network interfaces -- Updating firmware -- Checking for system updates in WebGUI -- Checking system updates using the CLI -- Installing plugins -- Advanced -- Accessing the CLI through SSH -- FreeBSD packages -- PKG basic operations -- Summary -- Chapter 3: Configuring an OPNsense Network -- Technical requirements -- Hardware considerations -- FreeBSD NIC names |
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The ifconfig command -- Basic network configuration -- WebGUI -- network interface configuration -- Assigning network interfaces -- Overview of the network interface -- Types of interfaces -- Bridge -- GIF -- GRE -- LAGG -- Loopback -- VLAN -- VXLAN -- Proposed exercise -- creating another type of network interface -- Exploring virtual IPs -- IP alias -- CARP -- Proxy ARP -- Proposed exercise -- creating a virtual IP address -- Network diagnostics and troubleshooting -- True story -- how to use ARP Table diagnostics -- Common issue -- local network hosts can't open websites -- Summary |
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Chapter 4: System Configuration -- Technical requirements -- Managing users and groups -- Creating users and groups -- External authentication -- Certificates -- a brief introduction -- General settings -- The administration page -- The General page -- About OPNsense logging -- Advanced settings -- Cryptography settings -- Configuration backup -- Summary -- Section 2: Securing the Network -- Chapter 5: Firewall -- Technical requirements -- Understanding firewalling concepts -- A stateful firewall -- The Packet Filter -- Firewall aliases -- Importing and exporting aliases -- The firewall rules |
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The rule processing order -- Rule actions -- Firewall settings -- Diagnostics and troubleshooting -- Troubleshooting -- Summary -- Chapter 6: Network Address Translation (NAT) -- Technical requirements -- NAT concepts -- Port forwarding -- Caveats -- Creating a port forwarding rule -- Outbound NAT -- NAT outbound modes -- Adding an outbound NAT rule -- One-to-one NAT -- Adding a one-to-one NAT rule -- Summary -- Chapter 7: Traffic Shaping -- Technical requirements -- Introduction to traffic shaping -- dummynet and ipfw -- a brief introduction -- Possible scenarios |
| Summary |
Work with one of the most efficient open-source FreeBSD-based firewall and routing solutions to secure your network with ease Key Features Learn end-to-end OPNsense firewall implementation and management Defend against attacks by leveraging third-party plugins such as Nginx and Sensei Grasp hands-on examples and labs to become proficient with OPNsense firewall Book Description OPNsense is one of the most powerful open source firewalls and routing platforms available. With OPNsense, you can now protect networks using features that were only previously available to closed source commercial firewalls. This book is a practical guide to building a comprehensive network defense strategy using OPNsense. You'll start with the basics, understanding how to install, configure, and protect network resources using native features and additional OPNsense plugins. Next, you'll explore real-world examples to gain in-depth knowledge of firewalls and network defense. You'll then focus on boosting your network defense, preventing cyber threats, and improving your knowledge of firewalling using this open source security platform. By the end of this OPNsense book, you'll be able to install, configure, and manage the OPNsense firewall by making the most of its features. What you will learn Understand the evolution of OPNsense Get up and running with installing and setting up OPNsense Become well-versed with firewalling concepts and learn their implementation and practices Discover how to apply web browsing controls and website protection Leverage Sensei to implement next-generation firewall features Explore the command-line interface (CLI) and learn the most relevant FreeBSD commands Who this book is for This OPNsense firewall book is for system administrators, network administrators, network security professionals, and enthusiasts who wish to build and manage an enterprise-grade firewall using OPNsense. A basic understanding of how a firewall works will be helpful to make the most of this book |
| Notes |
Controlling hosts' and users' bandwidth usage |
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Print version record |
| Subject |
Computer networks -- Security measures.
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Open source software.
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Computer networks -- Security measures.
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Open source software.
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| Form |
Electronic book
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| ISBN |
1801814058 |
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9781801814058 |
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