This book gave a solid grounding in what is available and a broad idea of how to use each of the options, such as IPSec with Openswan; PPTP with PopTop, using SSH+PPP, and other more proprietary VPN methods.
Some of the info is a bit dated; For example, many Linux kernels these days come standard with support for IPSec and PPTP as modules. I definitely recommend after reading this book and deciding on a VPN strategy, that you find quality web sites with more up-to-date information about how to configure your selected VPN technology on your selected Linux distribution. I chose Debian/GNU Linux myself. With this book and some updated information added to that foundation, I feel like I have a good start.
This book really needs a good update. There's a number of cited applications and implementations that have significant improvements in modern Linux distributations.
This book is old enough that most of the things in here are still doing it the hard way.
"Building Linux VPNs" (BLVPN) succeeds on multiple levels. It's lively, wise, practical, and thorough. With a minor exception, BLVPN is an unqualified triumph.
One of the book's amazing features is its willingness to not rehash "common knowledge." In other words, BLVPN assumes people who read books on Linux VPNs know something about two subjects: (1) Linux and (2) networking. Therefore, BLVPN doesn't waste time teaching the reader how to use the command line, and it doesn't include yet another boring description of the OSI model. Instead, BLVPN launches straight into practical, operational instructions for creating virtual private networks. I would like to see other authors adopt this approach!
Some of the book's key strengths include troubleshooting hints, clear diagrams, directory listings for key files, complete sample configuration scripts, and discussions of advantages and disadvantages of various VPN solutions. Furthermore, the...
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