VPS host is a server virtualization and automation technology, which adopts operating system virtualization technology. The concept of operating system virtualization is based on the process that * * * uses the operating system kernel, so that the virtual server does not need an additional virtualization kernel, so the resource consumption in the virtualization process is lower, so that more virtualized servers can be realized on a physical server. These VPS hosts enjoy hardware, software licenses and management resources with the highest efficiency. Each VPS host can be restarted independently, with its own root access rights, users, IP addresses, memory, programs, files, applications, system function libraries and configuration files. VPS host is a virtual host realized by virtualization technology of VPS host vmwareServer. Virtualization is an abstraction layer, which separates the physical hardware from the operating system, thus providing higher IT resource utilization and flexibility. VPS host technology supports Linux and Windows platforms. Virtuozzo server for Linux also supports different Linux distributions, and the kernel version on the virtual server is the same.