VPNs Illustrated: Tunnels, VPNS, and IPsec -- A Book Review
Title: VPNs Illustrated: Tunnels, VPNs, and IPsec
Author: Jon C. Snader
VPNs Illustrated: Tunnels, VPNS, and IPsec offers a clear and concise evaluation of the technology that allows private networks to extend through insecure channels. Overall, the purpose of this book is to inform readers of the benefits a VPN can offer. This is done through examples, diagrams and source code analysis. As a reference guide, the material does a good job of informing the reader about private networking over a public channel.
This book is not, however, a guide to configuring and installing a virtual private network (VPN), nor is it for beginners. If you are looking for a basic introduction to VPNs, you would be better served and could save some money by researching on-line publications. This book does provide a simple introduction, but the introduction is only a few pages long. This leaves the rest of the book to more advanced topics.
VPNs Illustrated is a solid reference guide that benefits students and engineers who want to gain a better knowledge of the design behind daemon- and kernel-based secure networking. It provides more than an analysis of VPNs and tunnels; there also are sections on TCP/IP, Cryptography and Secure Sockets Layer. This additional information is useful as references in other works or, as is the case here, to help explain and outline how a secure network can be created over an insecure public channel.
Snader provides the information through packet analysis, code samples and definitions taken from RFCs. This method allows the user to see a real-world implementation of the theory and get visual verification of the protected data path.
VPNs Illustrated also explains the methods behind the encryption process, through insight into the mathematics and the latest methods for bypassing the encryption. This explanation aided me in selecting a different encryption method for my own VPN, which improved security and performance on my system.
Many books in this field include only code snippets to explain their points. VPNs Illustrated does an excellent job of explaining by providing beneficial examples and interpretations. For example, the author provides code for a VPN encapsulated in an SSH tunnel. Currently, I am experimenting with this technique on my own server, as it provides a lightweight, easy-to-manage solution.
Snader does not investigate VPNs on Windows and instead focuses exclusively on BSD/Linux. Many IT departments would benefit from further study on how the various VPN tools discussed in the book interoperate with Windows.
Geoff Baker is a software developer at a telecommunications design firm. He currently is enrolled at the University of Saskatchewan, working towards a Masters in Electrical Engineering.
|Using Salt Stack and Vagrant for Drupal Development||May 20, 2013|
|Making Linux and Android Get Along (It's Not as Hard as It Sounds)||May 16, 2013|
|Drupal Is a Framework: Why Everyone Needs to Understand This||May 15, 2013|
|Home, My Backup Data Center||May 13, 2013|
|Non-Linux FOSS: Seashore||May 10, 2013|
|Trying to Tame the Tablet||May 08, 2013|
- Making Linux and Android Get Along (It's Not as Hard as It Sounds)
- Using Salt Stack and Vagrant for Drupal Development
- New Products
- Validate an E-Mail Address with PHP, the Right Way
- Drupal Is a Framework: Why Everyone Needs to Understand This
- A Topic for Discussion - Open Source Feature-Richness?
- Home, My Backup Data Center
- New Products
- RSS Feeds
- Tech Tip: Really Simple HTTP Server with Python
44 min 5 sec ago
- Automatically updating Guest Additions
1 hour 52 min ago
- I like your topic on android
2 hours 39 min ago
- Reply to comment | Linux Journal
3 hours 18 sec ago
- This is the easiest tutorial
9 hours 14 min ago
- Ahh, the Koolaid.
14 hours 53 min ago
- git-annex assistant
20 hours 52 min ago
- direct cable connection
21 hours 15 min ago
- Agreed on AirDroid. With my
21 hours 25 min ago
- I just learned this
21 hours 29 min ago
Enter to Win an Adafruit Prototyping Pi Plate Kit for Raspberry Pi
It's Raspberry Pi month at Linux Journal. Each week in May, Adafruit will be giving away a Pi-related prize to a lucky, randomly drawn LJ reader. Winners will be announced weekly.
Fill out the fields below to enter to win this week's prize-- a Prototyping Pi Plate Kit for Raspberry Pi.
Congratulations to our winners so far:
- 5-8-13, Pi Starter Pack: Jack Davis
- 5-15-13, Pi Model B 512MB RAM: Patrick Dunn
- Next winner announced on 5-21-13!
Free Webinar: Linux Backup and Recovery
Most companies incorporate backup procedures for critical data, which can be restored quickly if a loss occurs. However, fewer companies are prepared for catastrophic system failures, in which they lose all data, the entire operating system, applications, settings, patches and more, reducing their system(s) to “bare metal.” After all, before data can be restored to a system, there must be a system to restore it to.
In this one hour webinar, learn how to enhance your existing backup strategies for better disaster recovery preparedness using Storix System Backup Administrator (SBAdmin), a highly flexible bare-metal recovery solution for UNIX and Linux systems.