Book Image

Openswan: Building and Integrating Virtual Private Networks

By : Ken Bantoft, Paul Wouters
Book Image

Openswan: Building and Integrating Virtual Private Networks

By: Ken Bantoft, Paul Wouters

Overview of this book

<p>With the widespread use of wireless and the integration of VPN capabilities in most modern laptops, PDA's and mobile phones, there is a growing desire for encrypting more and more communications to prevent eavesdropping. Can you trust the coffee shop's wireless network? Is your neighbor watching your wireless? Or are your competitors perhaps engaged in industrial espionage? Do you need to send information back to your office while on the road or on board a ship? Or do you just want to securely access your MP3's at home? IPsec is the industry standard for encrypted communication, and Openswan is the de-facto implementation of IPsec for Linux.</p> <p>Whether you are just connecting your home DSL connection with your laptop when you're on the road to access your files at home, or you are building an industry size, military strength VPN infrastructure for a medium to very large organization, this book will assist you in setting up Openswan to suit those needs.</p> <p>The topics discussed range from designing, to building, to configuring Openswan as the VPN gateway to deploy IPsec using Openswan. It not only for Linux clients, but also the more commonly used Operating Systems such as Microsoft Windows and MacOSX. Furthermore it discusses common interoperability examples for third party vendors, such as Cisco, Checkpoint, Netscreen and other common IPsec vendors.</p> <p>The authors bring you first hand information, as they are the official developers of the Openswan code. They have included the latest developments and upcoming issues. With experience in answering questions on a daily basis on the mailing lists since the creation of Openswan, the authors are by far the most experienced in a wide range of successful and not so successful uses of Openswan by people worldwide.</p>
Table of Contents (22 chapters)
Building and Integrating Virtual Private Networks with Openswan
Credits
About the Authors
Acknowledgements
About the Reviewers
Preface

User Mode Linux Testing


User Mode Linux (UML) is a way to compile a Linux kernel such that it can run as a process in another Linux system (potentially as a *BSD or Windows process). See http://user-mode-linux.sourceforge.net for more information about UML.

UML is a good platform for testing and experimenting with Openswan. It allows several network nodes to be simulated on a single machine. Creating, configuring, installing, monitoring, and controlling these nodes is generally simpler and easier to script with UML than with real hardware. There are other virtual machine implementations, such as Xen and VMware, but these are not supported by the UML test suite.

You will need about 2 Gigabytes of free disk space for a full setup of seven to nine UMLs. You can possibly get this down by 130Mb if you remove the Sunrise/Sunset kernel build. If you just want to play around, then you can even remove the East/West kernel build.

Nothing needs be done as superuser, and we encourage people to run the...