VPS (Virtual Private Server) technology，Split a server into multiple virtual private servers. The technologies to implement VPS can be divided into container technology and virtualization technology. In containers or virtual machines, each VPS can allocate independent public network IP addresses, independent operating systems, separate disk space, memory, CPU resources, process, and system configuration between different VPS, and simulate the experience of “exclusive” use of computing resources for users and applications. VPS can reinstall the operating system, install programs, and restart servers separately, like standalone servers. VPS provides users with freedom of management configuration, which can be used for enterprise virtualization and IDC resource renting.
IDC resource rental, provided by the VPS provider. The difference between the hardware VPS software used by different VPS providers and the different sales strategies, the VPS experience is also quite different. Especially when VPS providers are oversold, the performance of VPS will be greatly affected when entity servers are overloaded.
VPS host technology also supports the Linux and Windows platforms. Under the Linux operating system, you can install CentOS, Ubuntu, Debian and so on. Under the WIndows platform, you can follow the Windows XP, Windows Server 2003, 2008 and other versions, it can be done on the computer, it can, and even play games.
Because Linux is an open source software, its cost is less than Windows. In addition, it is friendly to users and supports a wider range of applications. On the other hand, there are still applications that support Windows instead of Linux. Therefore, if you use ASP.NET and ASP, it might be better to use Windows instead of Linux.
The virtual host is a good website space, which can be accessed directly by uploading the web files to the virtual host through FTP. The virtual host can not achieve some environmental modifications, and can only choose the configuration suitable for the website at the time of purchase.
It is characterized by shared IP, small disk, traffic bandwidth limitation, FTP upload, and can only bind several domain names.
VPS is the meaning of a virtual server. It is made up of a part of the resource that is divided on the server. It has independent memory, hard disk, bandwidth, and has an independent IP. It is the same as the server in function and use. The user can do it locally by remote operation. It can be based on the operating system installed. To configure a variety of site running environment.
Its characteristics are independent IP, independent CPU, limited traffic bandwidth, affordable price, disk expansion, and complete autonomy.
The dedicated server hosting is the most expensive way in the IDC market because it ensures that a single server is only used by one customer, not the one hundred people that are used in the same way as virtual host space. Therefore, when enjoying the efficient and flexible performance of the entire server, its price is much higher than that of the virtual host or the VPS host.
Its characteristics are: multiple IP, memory and disk very large, also can be expanded freely, have virtual host, VPS all functions, you can also separate the dedicated server hosting into VPS and virtual host
|Difference||Traditional virtual host||vps||Entity server|
|performance||Usually poor||Usually good, you can upgrade and extend||good|
|Technical threshold||low||higher||Higher, including hardware maintenance|
|Memory||Fully shared||Independent, M to number G all have||Completely independent, determined by server hardware, and can be added.|
|Hard disk space||Sharing, the capacity is usually small||Independence, larger||Completely independent, can be added|
|cpu||There are usually many restrictions, and can not run programs that occupy large resources.||There is a certain limit||Determined by the server hardware, perfect monopoly|
|bandwidth||Shared bandwidth, easily affected by other sites||Relatively independent, generally guaranteed bandwidth||Large, determined by the access network|
|flow||Generally less||more||Large, determined by the access network|
|running speed||Usually slow||Faster||fast|
|Site isolation||Very poor||good||Complete isolation|
|stability||Usually poor||Generally good, the premise is that the system should be configured correctly.||Completely dependent configuration, including hardware and software configuration|
|Functional limitation||A lot||Very seldom||Hardly any|
|Safety||Poor, mainly responsible for the host||High, fully self managed|
|Ease of operation||simple||More complex||More complex|
|Functional richness||Very single||Rich, free custom||Rich, completely free custom|
|IP address||Commonly shared, part of the host provider provides independent IP||Independent IP, can increase IP||Independent IP, can increase IP|
|Extensibility||Poor, usually only expand the space and flow of hard disk||Better, very convenient||trouble|
|Convenience of migration||It is necessary to manually backup site files and databases one by one.||Convenient, all files can be packaged and compressed, including a configuration file that can be used in a new environment or even without modification. Some hosts can even move the whole system directly.||Implement the hardware equipment of the moving machine|
|Scope of application||Entry-level webmaster, small personal website, small company website
|Some experienced stationmaster, playful player, special network service provider, simulated practical entity server manager, and a large, medium and small company website||Large and medium web sites with special network service requirements|