The ssl-admin utility has some other features that someone managing a PKI may find interesting. The index is searchable (option 8), which shows a given certificate's status. Display of the current CRL is also possible (option 7). ssl-admin is capable of packaging OpenVPN configuration files with certificates for users both in an inline format (option i
), as well as separate files—all contained in a zip file (option z
). These last two options will be discussed further into this book, as we generate server and client configurations.
Mastering OpenVPN
By :
Mastering OpenVPN
By:
Overview of this book
Security on the internet is increasingly vital to both businesses and individuals. Encrypting network traffic using Virtual Private Networks is one method to enhance security. The internet, corporate, and “free internet” networks grow more hostile every day. OpenVPN, the most widely used open source VPN package, allows you to create a secure network across these systems, keeping your private data secure. The main advantage of using OpenVPN is its portability, which allows it to be embedded into several systems.
This book is an advanced guide that will help you build secure Virtual Private Networks using OpenVPN. You will begin your journey with an exploration of OpenVPN, while discussing its modes of operation, its clients, its secret keys, and their format types. You will explore PKI: its setting up and working, PAM authentication, and MTU troubleshooting. Next, client-server mode is discussed, the most commonly used deployment model, and you will learn about the two modes of operation using "tun" and "tap" devices.
The book then progresses to more advanced concepts, such as deployment scenarios in tun devices which will include integration with back-end authentication, and securing your OpenVPN server using iptables, scripting, plugins, and using OpenVPN on mobile devices and networks.
Finally, you will discover the strengths and weaknesses of the current OpenVPN implementation, understand the future directions of OpenVPN, and delve into the troubleshooting techniques for OpenVPN.
By the end of the book, you will be able to build secure private networks across the internet and hostile networks with confidence.
Table of Contents (17 chapters)
Mastering OpenVPN
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Free Chapter
Introduction to OpenVPN
Point-to-point Mode
PKIs and Certificates
Client/Server Mode with tun Devices
Advanced Deployment Scenarios in tun Mode
Client/Server Mode with tap Devices
Scripting and Plugins
Using OpenVPN on Mobile Devices and Home Routers
Troubleshooting and Tuning
Future Directions
Index
Customer Reviews