General Information About Virtuozzo Web Hosting Application

Feb 24

Virtuozzo (Virtuozzo Containers) proprietary software application application of Parallels, which is aimed to serve as enterprise server virtualization solution. It makes possible for a server administrator to create virtual environments on a host server or personal computer at the operating system (OS) layer. Virtuozzo Containers virtualization method is different from what is known by VMware, Microsoft Virtual Server or XEN. Virtuozzo is running a single operating system kernel as its core and exporting the core’s functionality to various instances on the host, called containers. Each of those containers serves as a stand-alone virtual instance called a Virtual Private Server (VPS). Virtuozzo features a Kernel Service Abstraction Layer (KSAL), owned by Parallels that manages access to the kernel and prevents any single virtual instance (Virtual Private Server) from bringing the underlying physical web server down. It also uses a proprietary file system to completely isolate the partitions, a security precaution which that prevents a software fault in one partition from impacting an application or data in another partition. In a Virtuozzo Containers powered virtual server each VPS has its own network IP address as well as a set of login credentials, system processes and daemon services. Each VPS reboots independently and data can be migrated from one virtual instance to another on a live host. This capacity is not possible with the virtual machine model of VMware. This makes Virtuozzo a good choice for web hosting services and web servers that host live data and applications and serve VPS accounts. The architecture of Virtuozzo eliminates system calls between layers and reduces CPU usage overhead. Common binaries and libraries on the same host machine can be shared. This makes possible for system administrators to put a large number of Virtual Private Servers on the same physical server. Administrators using Virtuozzo have three management options: the command line, Virtual Management Center (a GUI interface for management and monitoring) and Virtual Control Center (a Web-based interface for remote access). Virtuozzo was created and distributed by SWSoft (now Parallels). The company released the core of Virtuozzo under the GNU GPL (General Public License) in an open-source project called...

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