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OpenVPN Cookbook

You're reading from OpenVPN Cookbook Get the most out of OpenVPN by exploring it's advanced features.

Product type Paperback

Published in Feb 2017

Publisher

ISBN-13 9781786463128

Length 400 pages

Edition 2nd Edition

Languages

C

Tools

OpenVPN

Concepts

Networking

Author (1):

Jan Just Keijser

View More author details

Table of Contents (11) Chapters

Preface

1. Point-to-Point Networks FREE CHAPTER

2. Client-server IP-only Networks

3. Client-server Ethernet-style Networks

4. PKI, Certificates, and OpenSSL

5. Scripting and Plugins

6. Troubleshooting OpenVPN - Configurations

7. Troubleshooting OpenVPN - Routing

8. Performance Tuning

9. OS Integration

10. Advanced Configuration

Connecting via an HTTP proxy

As stated in the previous recipe, it is not possible to directly connect to an OpenVPN server under certain circumstances. In such cases, OpenVPN can connect to an OpenVPN server via an intermediary host known as a proxy. This recipe will outline how to access an OpenVPN server via an roxy.

The HTTP proxy used in this recipe is a Linux-based Apache httpd server with the mod_proxy module loaded. This module can be configured to allow CONNECT requests. This type of request is needed to connect to secure web servers (HTTPS) as well as to an OpenVPN server. If the CONNECT request is not allowed, then the HTTP proxy cannot be used to set up an OpenVPN connection.

Getting ready

We will use the following network layout:

Getting ready

Set up the client and server certificates using the first recipe from Chapter 2, Client-server IP-only Networks. For this recipe, the server computer was running CentOS 6 Linux and OpenVPN 2.3.12. The client was running Windows 7 64...

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Authors (1)

Jan Just Keijser

Jan Just Keijser

Jan Just Keijser is an open source professional from Utrecht, the Netherlands. He has a wide range of experience in IT, ranging from providing user support, system administration, and systems programming to network programming. He has worked for various IT companies since 1989. He was an active USENET contributor in the early 1990s and has been working mainly on Unix/Linux platforms since 1995. Currently, he is employed as a senior scientific programmer in Amsterdam, the Netherlands, at Nikhef, the institute for subatomic physics from the Dutch Foundation for Fundamental Research on Matter (FOM). He works on multi-core and many-core computing systems and grid computing as well as smartcard applications. His open source interests include all types of virtual private networking, including IPSec, PPTP, and, of course, OpenVPN. In 2004, he discovered OpenVPN and has been using it ever since. His first book was OpenVPN 2 Cookbook by Packt Publishing in 2011, followed by Mastering OpenVPN, also by Packt Publishing, in 2015.

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