18. Glossary

Application template is a template used to install a set of applications in virtual environments. See also Template.

Container is a virtual private server, which is functionally identical to an isolated standalone server, with its own IP addresses, processes, files, its own user database, its own configuration files, its own applications, system libraries, and so on. Containers share one physical server (or Hardware node) and one OS kernel. However, they are isolated from each other. A container is a kind of ‘sandbox’ for processes and users.

EZ template is a template file that points to a repository with the packages that comprise the template. EZ templates cannot be updated because the repository stays the same.

Hardware Node is a physical server where the Virtuozzo virtual environment software is installed for hosting virtual environments. Sometimes, it is marked as Container 0. in the interface, the Hardware Node term is used, while in the help physical server is being used.

Host Operating System (or Host OS) is an operating system installed on the physical server.

MAC address stands for Media Access Control address, a hardware address that uniquely identifies each physical server in a network. The MAC layer interfaces directly with the network media. Consequently, each different type of network media requires a different MAC layer.

Management Node. An obsolete designation of Management Server.

Master Server. A physical server where the Virtuozzo Automator Management Server component is installed.

OS template (or Operating System template) is used to create new virtual environments with a preinstalled operating system. See also Template.

Package set is a synonym for Template.

Virtuozzo Automator is a tool designed for managing physical server and all virtual environments residing on them with the help of a standard Web browser on any platform.

Private area is a part of the file system where virtual environment files that are not shared with other virtual environments are stored.

SSH stands for Secure Shell. It is a protocol for logging on to a remote machine and executing commands on that machine. It provides secure encrypted communications between two untrusted hosts over an insecure network.

TCP (TCP/IP) stands for Transmission Control Protocol/Internet Protocol. This suite of communications protocols is used to connect hosts on the Internet.

Template (or package set) is a set of original application files (packages) repackaged for mounting over Virtuozzo File System. There are two types of templates. OS Templates are used to create new virtual environments with a preinstalled operating system. Application templates are used to install an application or a set of applications in virtual environments.

UBC is an abbreviation of User Beancounter.

User Beancounter is the subsystem of the Virtuozzo Containers software for managing Container memory and some system-related resources.

VENET device is a virtual networking device, a gateway from a virtual environment to the external network.

Slave Server. It is a dedicated physical server that has one of the Virtuozzo virtual technologies installed.

Virtual Machine. The computer that is emulated using Virtuozzo virtualization technology, it is functionally identical to an isolated standalone server. A virtual machine has its own virtual hardware and requires an operating system to control its hardware. The installed operating system and its applications are isolated inside the virtual machine and share physical hardware resources of the physical server where the virtual machine resides.

Virtual Environment. Is a generic name for virtual machines and containers.

Virtuozzo Control Center (or VZCC) is an obsolete designation of Virtuozzo Automator.

Virtuozzo host license is a special license that you should load to the Hardware Node to be able to start using the virtual environments software. Every Hardware Node shall have its own Server license.