OpenVZ

OpenVZ uses Operating System Virtualization technology through which you can partition a single physical server into multiple small computational partitions and thus a physical server can have multiple secure isolated operating systems. Each such partition looks and feels like a real server. OpenVZ is based on Linux OS.

OpenVZ requires both the host and guest to be on Linux. OpenVZ allows to have multiple Virtual Environment (up to as many as several hundreds) on a single Hardware Node such physical server are know as Virtual Private Servers(VPS) or Virtual Environments(VE).

Each VE performs and executes exactly like a stand-alone server; VEs can be rebooted independently and have root access, users, IP addresses, memory, processes, files, applications, system libraries and configuration files.

Following are some important commands which are normally used while working on a Hardware Node.

# vzlist -a : Shows list of all the VPS's hosted on the Node.
# vzctl start VPS_ID: To start the VPS.
# vzctl stop VPS_ID : To stop (Shut Down) the VPS
# vzctl status VPS_ID : To view the status of the VPS
# vzctl stop VPS_ID  : to stop the VPS quickly and forcefully
# vzctl enter VPS_ID : To enter in a particular VPS

The OpenVZ project is an open source community project supported by SWsoft