Beginning OpenVPN 2.0.9

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  • Install OpenVPN on Windows Server, Vista, and Mac OS X and also on different Linux versions and FreeBSD
  • Learn basic security concepts necessary to understand VPNs and OpenVPN in particular
  • Take a look at encryption matters, symmetric and asymmetric keying, and certificates
  • Connect Windows and Linux systems and safely transfer the necessary encryption keys using WinSCP
  • Learn about OpenVPN, its development, features, resources, advantages, and disadvantages compared to other VPN solutions, especially IPsec
  • Discuss non-standard and advanced methods of installing OpenVPN by compiling the source code provided by the OpenVPN project
  • Create an encryption key for OpenVPN and use it to set up an OpenVPN tunnel between two Windows systems in the same network
  • Create X.509 server and client certificates for use with OpenVPN and learn how to use tools to debug and monitor VPN tunnels
  • Create and administer certificates that have to be transferred to the machines that are supposed to take part in the VPN
  • Configure two different firewall networks that connect to each other through the secure OpenVPN tunnel
  • Install and use XCA and TinyCA2 to generate certificate revocation lists that are used to block unwanted connections by formerly authorized clients
  • Install OpenVPN on Windows Mobile and Smartphones running embedded Linux, like Nokia's Maemo platform
  • Analyze the flow of datagrams between the VPN servers and the connected networks with tools like ifconfig, ping, traceroute, and mtr

OpenVPN is a powerful, open source SSL VPN application. It can secure site-to-site connections, WiFi, and enterprise-scale remote connections. While being a full-featured VPN solution, OpenVPN is easy to use and does not suffer from the complexity that characterizes other IPsec VPN implementations. It uses the secure and stable TLS/SSL mechanisms for authentication and encryption. This book is an easy introduction to this popular VPN application. After introducing the basics of security and VPN, it moves on to cover using OpenVPN, from installing it on various platforms, through configuring basic tunnels, to more advanced features, such as using the application with firewalls, routers, proxy servers, and OpenVPN scripting.

This is a practical guide to using OpenVPN for building both basic and complex Virtual Private Networks. It will save you a lot of time and help you build better VPNs that suit your requirements. While providing only necessary theoretical background, the book takes a practical approach, presenting plenty of examples. It starts with an introduction into the theory of VPNs and OpenVPN, followed by a simple installation example on almost every available platform. After a concise and ordered list of OpenVPN's parameters, we dive into connecting several machines in a safe way. The last third of the book deals with professional and high-end scenarios, and also mobile integration. After having read the whole book and followed and understood all the examples, you will be an expert in VPN, Security, and especially in OpenVPN Technology. This book was written for version 2.0.9 of OpenVPN, but all examples have been tested and run smoothly on version 2.1 too.

  • A practical guide to using OpenVPN for building both basic and complex Virtual Private Networks (VPNs)
  • Learn how to make use of OpenVPNs modules, high-end-encryption and how to combine it with servers for your individual privacy
  • Advanced management of security certificates
  • Get to know the new features of the forthcoming version 2.1 of OpenVPN
Page Count 356
Course Length 10 hours 40 minutes
ISBN 9781847197061
Date Of Publication 2 Dec 2009


Markus Feilner

Markus Feilner is a seasoned Linux expert from Regensburg, Germany. He has been working with free and open source software since 1994, as a trainer, consultant, author and journalist. His first contact with UNIX was a SUN cluster and SPARC workstations at Regensburg University (during his studies of geography).

Since 2000, he has published many books and courses used in Linux training sessions all over the world. Among that were three books for Packt (two on OpenVPN and one on Scalix Groupware). In the same year, he founded his own Linux consulting and training company, Feilner IT. He was also working as a trainer, consultant, and systems engineer at Millenux, Munich, where he focused on groupware, collaboration, and virtualization with Linux-based systems and networks.

Until 2015, he had been deputy editor-in-chief at the German Linux-Magazine, where he wrote about open source software for both printed and online magazines, including the Linux Technical Review and the Linux Magazine International (the U.S., UK, and Australia).

Today, the Conch diplomat, Minister of the Universal Life Church, Jedi Knight, and owner of lunar property holds several nationalities and is employed as Team Lead of the SUSE Documentation Team in Nürnberg. He regularly gives keynotes, workshops, lectures, and presentations at tech and political conferences in Germany.

He is interested in anything about geography, traveling, photography, philosophy (especially that of open source software), global politics, modern science, arts and literature, but always has too little time for these hobbies.

Norbert Graf

Norbert Graf is a senior IT expert from Munich, Germany. His experience covers more than a decade of IT consulting within healthcare and pharmaceutical corporations, large hospitals, and medium-sized high-tech enterprises. He is well-known as a writer for Linux-Magazin Germany and has published several books with Packt as a co-author.

His computer skills developed from a C64 in the late eighties (coding in Basic) to x86, DOS/Windows, and Linux experiences. His expertise lies in integration and networking with Windows and Linux servers. Today, he is working as an Infrastructure Architect for a social/healthcare corporation in Munich.