IPsec tunnels are based on two components. Phase 1 of the IPsec protocol defines the remote peer and how the tunnel is authenticated. One or more Phase 2 entries of the IPsec protocol define how traffic is carried across the secure tunnel. It is very important to configure these two phases carefully. If the information is incorrect in either section, the tunnel will likely fail to successfully negotiate Phase 1 and/or Phase 2. You need to make sure that both VPN servers have exactly the same settings for all of the IPsec configuration fields, with only a few exceptions to that rule. For example, both sides will have different identifiers and remote gateways. The subnet definitions, timeouts, encryption settings, and so on all need to match.
Network Security with pfSense
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Network Security with pfSense
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Overview of this book
While connected to the internet, you’re a potential target for an array of cyber threats, such as hackers, keyloggers, and Trojans that attack through unpatched security holes. A firewall works as a barrier (or ‘shield’) between your computer and cyberspace. pfSense is highly versatile firewall software. With thousands of enterprises using pfSense, it is fast becoming the world's most trusted open source network security solution.
Network Security with pfSense begins with an introduction to pfSense, where you will gain an understanding of what pfSense is, its key features, and advantages. Next, you will learn how to configure pfSense as a firewall and create and manage firewall rules. As you make your way through the chapters, you will test pfSense for failover and load balancing across multiple wide area network (WAN) connections. You will then configure pfSense with OpenVPN for secure remote connectivity and implement IPsec VPN tunnels with pfSense. In the concluding chapters, you’ll understand how to configure and integrate pfSense as a Squid proxy server.
By the end of this book, you will be able to leverage the power of pfSense to build a secure network.
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Current Title:
Network Security with pfSense
Table of Contents (7 chapters)
Preface
Free Chapter
Introduction to pfSense
pfSense as a Firewall
pfSense as a Failover and Load Balancer
Remote Connectivity with pfSense and IPsec
Using pfSense as a Squid Proxy Server
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