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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

How to read the OpenVPN log files

Troubleshooting an OpenVPN setup often comes down to reading and interpreting the OpenVPN log file correctly. In this recipe, no new features of OpenVPN will be introduced, but a detailed walk-through of an OpenVPN log file will be given. The setup from the Troubleshooting MTU and tun-mtu issues recipe earlier in this chapter will be used as a starting point.

Getting ready

Use the same setup as in the Troubleshooting MTU and tun-mtu issues recipe earlier in this chapter. For this recipe, the server computer was running CentOS 6 Linux and OpenVPN 2.3.11, and the client was running Fedora 22 Linux and OpenVPN 2.3.11. Keep the configuration file, basic-udp-server.conf, from the Server-side routing recipe from Chapter 2, Client-server IP-only Networks. For the client, keep the configuration file, example6-5-client.conf, from the Troubleshooting MTU and tun-mtu issues recipe at hand.

How to do it...

Start the server using the configuration file, basic-udp-server...

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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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