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OpenVZ is container-based virtualization for Linux. OpenVZ creates multiple secure, isolated Linux containers (otherwise known as VEs or VPSs) on a single physical server enabling better server utilization and ensuring that applications do not conflict. Each container performs and executes exactly like a stand-alone server; a container can be rebooted independently and have root access, users, IP addresses, memory, processes, files, applications, system libraries and configuration files. For more information about the technology and how it differs from the others like Xen, VMware etc., see [[introduction to virtualization]], {{PDFlink|[[download:doc/openvz-intro.pdf|doc/openvz-intro.pdf]]|73 KB}} or , [[wikipedia:OpenVZ]] or [[Comparison|comparison table]].
OpenVZ software consists of an optional custom Linux kernel and command-line tools (mainly vzctl). Our kernel developers work hard to merge containers functionality into the upstream Linux kernel, making OpenVZ team the biggest contributor to Linux Containers (LXC) kernel, with features such as PID and network namespaces, memory controller, checkpoint-restore etc(see [http://criu.org CRIU.org]) and much more. OpenVZ tools (vzctl) is a solid alternative to LXC tools, see [[vzctl for upstream kernel]] for more details. While OpenVZ can be used with recent upstream kernel, we recommend using OpenVZ kernel for security, stability and features.
OpenVZ is free open source software, available under GNU GPL.
== Installation and usage ==
OpenVZ is easy to install if you already have Linux installed on your machine. See [[quick installation]] for installation info. Alternatively, you can try a [[Download live CD|live CD]] to test drive the technology without a need to install anything.
A comprehensive (although somewhat old) {{PDFlink|[[download:doc/OpenVZ-Users-Guide.pdf|doc/OpenVZ-Users-Guide.pdf]]| 1.3 MB}} is a good start. This wiki also has a lot of information (use search function, see [[Special:Categories|list of all categories]] or [[Special:Allpages|list of all pages]].
== Control panels ==
OpenVZ comes with command line tools only. If you need management tools, consider upgrade to [http://www.odin.com/products/virtuozzo/ Virtuozzo].
Also, there is a list of third-party software (both free and proprietary) available at [[Control panels]].
If you can't make your choice, we recommend:
* [http://www.parallelsodin.com/products/plesk Parallels / Plesk Panel] for using inside a container* [http://codeowp.googlesoftunity.com/p/ovz-web-panel.ru/ OVZ Web panel] for managing containers<br clear="left"/>= Contribution == OpenVZ is project with open processes and development artifacts. It means everyone can participate in [[Development_portal|development]], [[QA|testing]] or discussing of OpenVZ. Also we have a bunch of articles for [[Contribute|OpenVZ contributors]].
== Support ==
'''Commercial [http://www.odin.com/support/virtualization-suite/openvz/ Learn more and join the OpenVZ Maintenance Partnership]''' is also available, email sales@openvz.org for details.
== Testimonials = Free support ===''And thanks again for OpenVZ. Our business couldn't do what we do, as well as we do, with VMWare or Xen. Gregor Mosheh''
== This wiki ==
;[[:Category:Networking|Networking]]
: Networking-related articles
;[[:Category:Storage|Storage]]
: Storage-related articles (mostly [[ploop]] and [[pstorage]])
;[[:Category:HOWTO|HOWTOs]]
: How to do something
;[[:Category:Definitions|Definitions]]
: Short definitions of various terms used in OpenVZ
;[[History]]
: list of major project milestones
;[[Interviews]]
: public conversations with OpenVZ developers
;[[Comparison]]
: to other container solutions
;[[Roadmap]]
: past and future releases of OpenVZ and its components
== Audio ==
{{:Podcasts}}
== External links ==
* [[wikipedia:OpenVZ]]
* [http://criu.org criu.org]
* [[meta:Help:Editing]]