虚拟服务器
虚拟服务器相对于真实主机而言，采用特殊的软硬件技术把一台完整的服务器主机分成若干个主机。实际上是将真实的硬盘空间分成若干份，然后租给不同用户，每一台被分割的主机都具有独立的域名和IP地址，但共享真实主机的CPU、RAM、操作系统、应用软件等。运行时由用户远程操作属于自己的那一块，而这一块对任何用户而言，就是一台“完整”的服务器，与真实独立的主机功能完全一样。
用户只需对自己的信息进行远程维护，而无需对硬件、操作系统及通信线路进行维护。该技术可为广大中小型企业或初次建立网站的企业节省大量人力物力及一系列繁琐的工作，是企业发布信息较好的方式。
特点：投资小、建站速度快、安全可靠、无须软硬件配置及投资，无须拥有技术支持等特点。
虚拟主机提供的服务内容
存储空间
IP地址，并且支持多个域名指向同一个IP地址
文件传输
网页制作
全天候服务和优质的访问速度
企业申请虚拟服务器过程
企业电商网站的目标和功能
企业的投入
选择合适的虚拟服务器提供商
域名申请与保护
空间的大小
空间支持的功能
接入速度
网页的制作（注意，需要与空间所支持的功能对应）
后期的维护……
虚拟服务器服务器虚拟化是少有的几种技术之一，它们听上去太好而好像不真实，但实际上是真的。其早期的用途是减少使用率不足的服务器硬件，(将处理任务)集中到数量更少的机器上。自这些早期应用以来，它已经发展成一种多目的的解决方案，实现更高的可靠性、更好的管理、以及成为企业数据中心管理员不可或缺的工具。按照非常简化的定义，虚拟服务器是仅仅利用软件来模拟独立计算机的行为和能力。虚拟化这个术语是很简单的。(服务器虚拟化)软件栈集的底部是直接安装在服务器硬件上的普通操作系统。其上是处理重新定向和仿真的虚拟层，而重新定向和仿真构成了虚拟计算机。这底部的两层合起来被叫做宿主机。宿主机提供大家熟悉的 PC机BIOS ROM的全部工作，按照用户的选择，利用改变用户定义的配制而生出很多独立的PC机。作为物理的服务器，虚拟 PC机只有安装了操作系统才有用。安装在虚拟宿主机上的操作系统称做客OS。安装客操作系统(OS)非常简便，只需从OS的安装光盘上引导过来。这和PC机上安装OS没有什么两样。一般来说，如果你不知道虚拟化是如何运转的，这就是答案：就像一台PC机。事实上，在全 Windows环境下，你很容易找不到北：是在看Windows宿主机OS，还是在看刚刚安装的四个Windows客OS中的一个?你自己可能搞不清，但你的客OS及其应用程序是从来不会弄错的。每个客OS认为它拥有整个机器。在某种意义上，它是拥有整个机器。
基于软件的硬件运行在虚拟服务器上的操作系统和应用程序不直接控制内存、硬盘和网络端口等资源，而是由位于 OS和应用程序之间的VM(虚拟机)截取与硬件交互的请求并在认为合适时对它们进行处理。真正将此技术变成接近于魔术的是 VMware公司的ESX Server等世界级的虚拟化解决方案，这类解决方案能合成整个硬件的配置，而它与基础的硬件几乎没有关系。例如，宿主机可以最详细地模拟SCSI控制器的初始化过程，让客OS相信即使不存在物理的SCSI控制器时初始化也在被执行。它能使IDE磁盘机看上像SCSI磁盘机，能将网络共享的磁盘机转换成装在本机内的存储设备，将一个以太网卡变成几个网卡，并能在较老式的操作系统和它不支持的新式硬件(如光通道卡)之间生成网关。你可以建立完全适合应用程序需要的属于你自己的服务器，这时你用的是鼠标而不是用改锥。在每次需要时把 OS 和软件装到物理的 PC 服务器是很烦人的。幸亏有了虚拟化你就不必这么做。在完全按你的喜好调好虚拟硬件的配置后，你就能把服务器磁盘映像保存到文件中，对其他的客系统而言它可以当做样板用。在实际中，它是一件赏心悦目的好事。你能通过拷贝该文件将虚拟服务器备份。复制该文件就能创建新的服务器 —— 而拷贝 Windows 需要重新激活和相应的许可证，或者把已有的服务器移到不同的物理硬件上。
Virtual ServerServer Virtualization is one of several rare, they sounded very good and it seems untrue, but in fact is true. Its early use is to reduce under-utilization of server hardware, (to deal with mission) into fewer machines. Since these early applications, it has developed into a multi-purpose solution to achieve higher reliability, better management, as well as enterprise data centers has become an indispensable tool for administrators. In accordance with a very simplified definition, the virtual server is the only use of an independent computer software to simulate the behavior and capabilities. The term virtualization is very simple. (Server Virtualization) software set at the bottom of the stack is directly installed on the server hardware, operating system, the ordinary. Is deal with their re-orientation and simulation of virtual layer, and re-orientation and constitute a virtual computer simulation. This is at the bottom two layers together are called the host. Host to provide everyone familiar with PC-BIOS ROM of the entire work, in accordance with the user's choice, use change user-defined a lot of preparation and give birth to an independent PC. As a physical server, virtual PC machine, only installed the operating system be useful. Installed in the virtual host's operating system, said a guest OS. Off the operating system installed (OS) is very simple, just from the OS installation from CD-ROM guide. This PC-installed OS is no different. Generally, if you do not know is how virtualization works, this is the answer: Just like a PC. In fact, in the whole Windows environment, you can easily find the North: in the look Windows host OS, or just watch the installation of the four Windows off an OS? May confuse you, but your customer OS and its applications are never made no mistake of. Each passenger OS think it has the whole machine. In a sense, it is to have the entire machine.
Software-based hardwareRunning in a virtual server operating system and applications do not directly control the memory, hard drives and network resources such as ports, but by the OS and applications is located between the VM (virtual machine) that interacts with hardware interception of the request and when deemed appropriate, deal with them. Become closer to the real magic of this technology is that VMware's ESX Server, such as world-class virtualization solutions, such solutions can be synthesized throughout the hardware configuration, and it is based on the hardware and almost does not matter. For example, the host can be the most detailed simulation of SCSI controller initialization process so that customers believe that the OS does not exist even if the physical initialization of the SCSI controller also be executed. It can look like IDE disk drive SCSI disk drive, network share can be converted into the disk drive is installed in the local storage device, an Ethernet network adapter card into a few, and can operate in the more old-fashioned system and it does not support new hardware (such as the optical channel card) generated between the gateway. You can create complete applications for the needs of your own server, then you are using a mouse rather than using screwdriver. When necessary to each OS and software loaded into the PC physical server is very annoying. Thanks to virtualization you do not have to do so. Completely according to your preferences tuned virtual hardware configuration, you will be able to server disk image saved to the document, on the other passenger and systems it can use as a template. In practice, it is a pleasant thing. You can copy the file to virtual server backup. Copy of the document will be able to create a new server - and need to re-activate copies of Windows and the corresponding permit, or the server has been moved to different physical hardware.