Hosting services in the cloud provide accommodation for websites on virtual servers that draw their extensive computing resources underlying physical server web networks. The utility model of computing that is available as a service instead of a product and thus is comparable to conventional incidental costs such as electricity and gas. Generally, the customer can use his service as much as they need, depending on the requirements of your site, and pay only for what they use.
It exists as an alternative to sites on individual servers (dedicated or shared) hosting and can be considered as an extension to the concept of clustered hosting sites that are hosted on multiple servers. However, with cloud hosting, network server is used, is extensively and often drawn from different data centers in different locations.
The practical examples of cloud hosting can be included in the Infrastructure as a Service (IaaS) and Platform as a Service (PaaS) ranking. Under IaaS offers, the customer simply provided with the hardware virtualized resources where you can install your own choice of software environment before building your web application. In a PaaS service, but also the customer provides this software environment, for example as a solution stack (operating system, support database, web server software and programming support) where they can go directly to install and develop yours Web application. Companies with complex IT infrastructures and IT experts with experience can opt for the most adaptable IaaS model, but others may prefer the ease of a PaaS option.
Developing the concept of the cloud for business customer hosting is the Virtual Data Center (VDC). This network uses a virtualized cloud server, which can be used to meet all IT operations of a company, including websites.
The most obvious examples of cloud hosting models include the use of public cloud that is hosted on virtual servers that transfer resources from the same group as the other publicly available virtual servers and use the same public networks to extract data; Data that is physically stored in the underlying shared resource server in a cloud. These public clouds are some security measures that the data to ensure is private and rich for most installations site. However, when security and privacy are a concern, companies can access private clouds as an alternative to cloud hosting, meaning clouds with resources (servers, networks, etc.), either in the website or the cloud provider.
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