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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, doc/openvz-intro.pdf (73 KB) or wikipedia:OpenVZ.

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 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. 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. {{#TwitterFBLike:|small|like|Main Page old}}

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 live CD to test drive the technology without a need to install anything.

A comprehensive doc/OpenVZ-Users-Guide.pdf ( 1.3 MB) is a good start. This wiki also has a lot of information (use search function, see list of all categories or list of all pages.

Control panels

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OpenVZ comes with command line tools only, but if you need web-based control panels, 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:


Support

Please read the documentation before asking questions. Check the FAQ, use Google, search both this wiki and the forum. If this doesn't help, ask on either forum or a mailing list.

Please report all bugs to OpenVZ bugzilla.

Commercial support is also available, email sales@openvz.org for details.

Testimonials

And thanks again for OpenVZ. Our business couldn't do what we do, as well as we do, with VMWare or Xen. Gregor Mosheh

See more testimonials, or add your own.

This wiki

This site is a wiki — the place to gain and share your OpenVZ knowledge. Wiki is a documentation portal, a knowledge base, a collaboration tool. Everyone (you!) can create or edit content, it's really easy. For information about wiki syntax and wiki editing, see meta:Help:Editing.

Below are a few links you can start from. In addition, you might want to take a look at the list of all categories or all pages.

Concepts
OpenVZ and virtualization concepts
Technology
Description of OpenVZ technologies
Installation
How to install OpenVZ
Templates
Everything about OpenVZ templates
Kernel
Articles concerning OpenVZ kernel
Troubleshooting
What to do if something fails
Networking
Networking-related articles
HOWTOs
How to do something
FAQ
Frequently Asked Questions
Artwork
Show your appreciation of OpenVZ on your site using these images
Definitions
Short definitions of various terms used in OpenVZ

External links