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Installing OpenVPN on Linux and Unix Systems

Dec 04, 2009, 21:01 (1 Talkback[s])
(Other stories by Markus Feilner)

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[ Thanks to Ramsai for this link. ]


"All Linux/Unix systems must meet the following requirements to install OpenVPN successfully:

* Your system must provide support for the Universal TUN/TAP driver. The kernels newer than version 2.4 of almost all modern Linux distributions provide support for TUN/TAP devices. Only if you are using an old distribution or if you have built your own kernel, will you have to add this support to your configuration. This project's web site can be found at
* OpenSSL libraries have to be installed on your system. I have never encountered any modern Linux/Unix system that does not meet this requirement. However, if you want to compile OpenVPN from source code, the SSL development package may be necessary. The web site is
* The Lempel-Ziv-Oberhumer (LZO) Compression library has to be installed. Again, most modern Linux/Unix systems provide these packages, so there shouldn't be any problem. LZO is a real-time compression library that is used by OpenVPN to compress data before sending. Packages can be found on, and the web site of this project is
* Most Linux/Unix systems' installation tools are able to resolve these so-called dependencies on their own, but it might be helpful to know where to get the required software.
* Most commercial Linux systems, like SuSE, provide installation tools, like Yet another Setup Tool (YaST), and contain up-to-date versions of OpenVPN on their installation media (CD or DVD). Furthermore, systems based on RPM software can also install and manage OpenVPN software at the command line."

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