Difference between revisions of "OpenVPN"

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'''OpenVPN''' is an open-source software application that implements virtual private network (VPN) techniques for creating secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities. It uses a custom security protocol<ref name="openvpn-protocol">{{cite web |title=OpenVPN - Security Overview |url=http://openvpn.net/index.php/open-source/documentation/security-overview.html |publisher=OpenVPN Technologies, Inc |accessdate=15 March 2012}}</ref> that utilizes [SSL/TLS for key exchange. It is capable of traversing network address translators (NATs) and firewalls. It was written by James Yonan and is published under the GNU General Public License (GPL).<ref name="Yonan">{{cite web |url=http://www.linuxsecurity.com/content/view/117363/49/ |title=OpenVPN: An Introduction and Interview with Founder, James Yonan |author=Dunston, Duane |publisher=LinuxSecurity.com |date=10 November 2003 |accessdate=15 March 2012}}</ref>
'''OpenVPN''' is an open-source software application that implements virtual private network (VPN) techniques for creating secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities. It uses a custom security protocol<ref name="openvpn-protocol">{{cite web |title=OpenVPN - Security Overview |url=http://openvpn.net/index.php/open-source/documentation/security-overview.html |publisher=OpenVPN Technologies, Inc |accessdate=15 March 2012}}</ref> that utilizes SSL/TLS for key exchange. It is capable of traversing network address translators (NATs) and firewalls. It was written by James Yonan and is published under the GNU General Public License (GPL).<ref name="Yonan">{{cite web |url=http://www.linuxsecurity.com/content/view/117363/49/ |title=OpenVPN: An Introduction and Interview with Founder, James Yonan |author=Dunston, Duane |publisher=LinuxSecurity.com |date=10 November 2003 |accessdate=15 March 2012}}</ref>


OpenVPN allows peers to authenticate each other using a pre-shared secret key, certificates, or username/password. When used in a multiclient-server configuration, it allows the server to release an authentication certificate for every client, using signature and certificate authority. It uses the OpenSSL encryption library extensively, as well as the SSLv3/TLSv1 protocol, and contains many security and control features.
OpenVPN allows peers to authenticate each other using a pre-shared secret key, certificates, or username/password. When used in a multiclient-server configuration, it allows the server to release an authentication certificate for every client, using signature and certificate authority. It uses the OpenSSL encryption library extensively, as well as the SSLv3/TLSv1 protocol, and contains many security and control features.
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While traveling around Central Asia and other parts of the world around 2000, author James Yonan became concerned about the security of telecommuting for the company he was working for. After noticing a philosophical division in the development of existing open-source VPN options, Yonan was inspired to create OpenVPN.<ref name="Yonan" /> On March 14, 2002, Yonan created a SourceForge project<ref>{{cite web |url=http://sourceforge.net/projects/openvpn/ |title=OpenVPN |publisher=SourceForge.net |accessdate=15 March 2012}}</ref> and released version 1.1.0 almost a month later.<ref name="OpenVPNStart" />
While traveling around Central Asia and other parts of the world around 2000, author James Yonan became concerned about the security of telecommuting for the company he was working for. After noticing a philosophical division in the development of existing open-source VPN options, Yonan was inspired to create OpenVPN.<ref name="Yonan" /> On March 14, 2002, Yonan created a SourceForge project<ref>{{cite web |url=http://sourceforge.net/projects/openvpn/ |title=OpenVPN |publisher=SourceForge.net |accessdate=15 March 2012}}</ref> and released version 1.1.0 almost a month later.<ref name="OpenVPNStart" />
On April 17, 2005, version 2.0 was released.<ref>{{cite web |url=http://openvpn.net/index.php/open-source/documentation/change-log/70-20-change-log.html |title=OpenVPN - 2.0.x Change Log |publisher=OpenVPN Technologies, Inc |accessdate=15 March 2012}}</ref>
In July 2009, OpenVPN received an "A" ranking — the highest possible ranking — from security review service Veracode for its 2.0.9 release.<ref>{{cite web |url=http://internet.itbusinessnet.com/articles/viewarticle.jsp?id=804205 |title=OpenVPN Receives Veracode's Highest Possible "A" Security Rating |publisher=IT Business Net |date=22 July 2009 |accessdate=15 March 2012}}</ref>


==Features==
==Features==
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==Hardware/software requirements==
==Hardware/software requirements==


OpenLDAP installation requirements vary based on the features desired. Those prerequisites can be found on OpenLDAP's [http://www.openldap.org/faq/data/cache/196.html FAQ-O-Matic].
Please refer to [http://openvpn.net/index.php/open-source/documentation/howto.html this page] for step-by-step instructions on configuring an OpenVPN 2.0 client/server VPN and any necessary dependencies for the software's installation.


==Videos, screenshots, and other media==
==Videos, screenshots, and other media==


A few OpenLDAP instructional videos can be found on [http://www.youtube.com/playlist?list=PLC504D22F076979F8 YouTube].
OpenVPN Technologies offers a series of instructional videos, which can be found on [http://openvpn.net/index.php/access-server/docs/videos.html the site].
 
==Entities using OpenVPN==
 


==Further reading==
==Further reading==


* {{cite web |url=http://www.openldap.org/doc/admin24/ |title=OpenLDAP Software 2.4 Administrator's Guide |publisher=OpenLDAP Foundation}}
* {{cite web |url=http://openvpn.net/index.php/access-server/docs/admin-guides.html |title=OpenVPN How-To Guides |publisher=OpenVPN Technologies, Inc.}}
* {{cite web |url=http://www.gracion.com/server/whatldap.html |title=What is LDAP? |publisher=Gracion Software}}
* {{cite web |url=http://openvpn.net/index.php/open-source/books.html |title=Book suggestions on the topic of OpenVPN |publisher=OpenVPN Technologies, Inc.}}


==External links==
==External links==


* [http://www.openldap.org/faq/data/cache/1.html OpenLDAP Faq-O-Matic]
* [https://github.com/OpenVPN OpenVPN project page] on GitHub
* [http://www.packtpub.com/OpenLDAP-Developers-Server-Open-Source-Linux/book Mastering OpenLDAP: Configuring, Securing and Integrating Directory Services]
* [https://community.openvpn.net/openvpn OpenVPN Wiki]


==References==
==References==
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[[Category:Network management software (open source)]]
[[Category:Security software (open source)]]

Latest revision as of 23:08, 4 June 2019

OpenVPN
Ovpntech logo-s REVISED.png
Original author(s) James Yonan
Developer(s) OpenVPN Technologies, Inc.
Initial release April 10, 2002; 22 years ago (2002-04-10)[1]
Stable release

2.6.8  (November 17, 2023; 5 months ago (2023-11-17))

[±]
Preview release 2.5.0 Beta 1  (August 12, 2020; 3 years ago (2020-08-12)) [±]
Written in C
Operating system Cross-platform
Available in Multilingual
Type Network management software
License(s) GNU General Public License
Website OpenVPN.net

OpenVPN is an open-source software application that implements virtual private network (VPN) techniques for creating secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities. It uses a custom security protocol[2] that utilizes SSL/TLS for key exchange. It is capable of traversing network address translators (NATs) and firewalls. It was written by James Yonan and is published under the GNU General Public License (GPL).[3]

OpenVPN allows peers to authenticate each other using a pre-shared secret key, certificates, or username/password. When used in a multiclient-server configuration, it allows the server to release an authentication certificate for every client, using signature and certificate authority. It uses the OpenSSL encryption library extensively, as well as the SSLv3/TLSv1 protocol, and contains many security and control features.

Product history

While traveling around Central Asia and other parts of the world around 2000, author James Yonan became concerned about the security of telecommuting for the company he was working for. After noticing a philosophical division in the development of existing open-source VPN options, Yonan was inspired to create OpenVPN.[3] On March 14, 2002, Yonan created a SourceForge project[4] and released version 1.1.0 almost a month later.[1]

On April 17, 2005, version 2.0 was released.[5]

In July 2009, OpenVPN received an "A" ranking — the highest possible ranking — from security review service Veracode for its 2.0.9 release.[6]

Features

See this datasheet (PDF) for an explanation of OpenVPN's features and advantages.

Hardware/software requirements

Please refer to this page for step-by-step instructions on configuring an OpenVPN 2.0 client/server VPN and any necessary dependencies for the software's installation.

Videos, screenshots, and other media

OpenVPN Technologies offers a series of instructional videos, which can be found on the site.

Entities using OpenVPN

Further reading


External links

References