Virtual server also called VPS server hosting, relative to the real host speaking, adopt special software and hardware technology throwing a complete server hostname divided into many hosts. Is actually true disk space into several parts, and rented to different users, each one is divided the hosts are independent of the domain name and IP address, but sharing real host CPU, RAM, operating system and application software etc. Runtime by the user remote operation of their own, and this one piece of any user character, it is a "complete" of the server, and real separate mainframe function exactly the same, netizens in space domain network application general virtual server. Users need to own information remote maintenance, instead of hardware, operating system and line maintenance.
Virtual host system
introduction
The technology is the Internet servers server hardware cost saving technology, virtual mainframe technology mainly applies to the HTTP, FTP, EMAIL and many other services, will be a server of a certain or full service content logic division for multiple service units, foreign performance for multiple servers, which make full use of the server hardware resources. If the division is system level, it is known as a virtual server.
To improve performance
Sometimes a single server cannot satisfy use needs, or even single server can meet this requirement, but the cost is too high. So using virtual server to achieve using demand.
Cost reduction
Multiple virtual server, erection by software in the same physical server that each virtual server has can provide all the features that server relatively each virtual server the cost reduction of many.
Characteristics and contents
The technology for the overwhelming majority of small and medium-sized enterprises or first website enterprise save a lot of manpower and a series of tedious work, is the enterprise release information better way.
Features: small investment, destinati a fast, safe and reliable, no need of software and hardware configuration and investment, beardless has the technical support, etc.
Hosting provider of service content
The storage space
IP address, and support multiple domains pointing to the same IP address
File transfer
Web pages
Round-the-clock service and quality access speed
Enterprise virtual server application process
Enterprise DianShangWang standing goals and functions
Enterprise's investment
Choose appropriate virtual server providers
Domain name application and protection
Dimensional size
Space support functions
Access speed
Homepage making (attention, needs and space, which support function corresponding)
Later maintenance...
Virtual server
Server virtualization is one of the few several technical one, they sound very good and seems not real, but is actually true. Its purpose is to reduce the usage of early insufficient server hardware, (will) on processing task even fewer machine. Since these early since application, it has developed into a more objective solutions, achieve higher reliability, better management, and to become the enterprise data center administrator indispensable tools.
According to the definition of very simplified and virtual server is just use software to simulate the independent computer behavior and ability. Virtualization this term is very simple. (server virtualization) software stack set bottom is installed directly on the server hardware of ordinary operating system. It is to deal with afresh directional and simulation of virtual layer, and be redirected and simulation constitutes the virtual computer. This bottom two layers combined called host machine. Hosting provide familiar PC BIOS ROM all the work, according to the user's choice, use change user defined oil.it brought forth many independent PC.
As the physics of the server, virtual PC only install the operating system to useful. Installed in virtual on host operating system called a guest OS. Install guest operating system (OS) is very simple, just from the installation CD on OS lead over. This and PC installation OS nothing out of the ordinary. Generally speaking, if you don't know is how to run the virtualization, this is an answer: like a PC. In fact, in all the Windows environment, you will easily find north: is watching the Windows hosting OS, or watching just install the four Windows in a guest OS? You may do not clear, but your guest OS and its application is never make a mistake. Each guest OS think it has the whole machine. In a sense, it is own the whole machine.
Based on software hardware
Running in the virtual server of operating system and application does not directly control memory, hard disk and network port resource, etc, but by the OS and application between the virtual machine (VM) intercepting and hardware of interaction in the request, and when they deem appropriate to undertake handling.
True to bring the technology to become close to magic is the VMware company ESX Server etc world-class virtualization solutions, this kind of solution can synthesize the whole hardware configuration, and it and basic hardware almost no relationship. For example, the host machine can be the most detailed simulation SCSI controller initialization procedures, let guest OS that even does not exist physical SCSI controller when initialization also executed. It can make IDE disk machine like SCSI disks are machine, can will network share disk convert installed in the machine in storage equipment, will be a ethercard into several nic, can be in more old-fashioned operating system and it did not support the new hardware (such as light channel between card) generated gateways. You can build a completely suitable for applications need of your own server, when you are using a mouse not with a screwdriver.
In every time you need the OS and software installed to physical PC server is boring. Thanks to a virtualization you don't have to do that. In completely according to your preferences adjusted the virtual hardware configuration, you can save the server disk image to file to the other guest system it can treat as example to use. In practice, it is a pleasing thing. You can copy this document will through virtual server backup. Copy the file can create new server - and copying Windows need to activate and the corresponding license, or the existing server move to different physical hardware.
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