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Web Hosting DomainThe scopes of hosting services vary widely. The most basic is web page and (small) file hosting, where files can be uploaded via FTP or a Web interface. The files are usually delivered to the Web “as is” or with little processing. Many ISPs offer this service for free to their subscribers. People can also obtain Web page hosting from other, alternative service providers. Web page hosting is typically free, advertisement sponsored, or cheap.

Web page hosting is generally sufficient only for personal home pages. A complex site calls for a more comprehensive package that provides database support and application development platforms (e.g. PHP, Java, and ASP.NET). These facilities allow the customers to write or install scripts for applications like forums and content management. For e-commerce, SSL is also required. The host may also provide a Web interface (e.g. cPanel, Interworx) for managing the Web server and installing scripts as well as other services like e-mail.

Some hosts specialize in certain software or services (e.g. e-commerce). They are commonly used by larger companies to outsource network infrastructure to a hosting company.

Types of hosting

Internet hosting services can run web servers; see Internet hosting services.

Hosting services limited to the web:

Some specific web services:

Share Web Hosting Service
The hosting service must include system administration since it is shared by many users; this is a benefit for users that do not want to deal with it, but a hindrance to power users that want more control.

Shared hosting typically uses a web-based control panel system, such as cPanel, Plesk, Helm, H-sphere, Ensim, Sphera or one of many other control panel products.

In shared hosting, the provider is generally responsible for management of servers, installation of server software, security updates and other aspects of the service. Servers are often based on the Linux operating systems because more Control Panel products (see above) are made for Linux. However, some providers offer Microsoft Windows based solutions. The Plesk control panel, for instance, has two versions – for Linux and Windows, both with very similar interfaces and functionality, with the exception of OS-specific differences (for example, supporting ASP.NET, or Microsoft SQL Server on Windows).

There are thousands of shared hosting providers in the United States alone. They range from mom-and-pop shops, to small design firms, to multi-million dollar providers with hundreds of thousands of customers. A large portion of the shared web hosting market is driven through Pay Per Click advertising (PPC) or Affiliate programs.

Shared web hosting can also be done privately by sharing the cost of running a server in a colocation centre; this is called cooperative hosting.

Shared web hosting can be accomplished in two ways: name-based and IP-based.
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Name-based

In name-based virtual hosting, also called shared IP hosting, the virtual hosts serve multiple hostnames on a single machine with a single IP address.

When a web browser requests a resource from a web server using HTTP/1.1 it includes the requested hostname as part of the request. The server uses this information to determine which web site to show the user.
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IP-based

In IP-based virtual hosting, also called dedicated IP hosting, each virtual host has a different IP address. The web server is configured with multiple physical network interfaces, or virtual network interfaces on the same physical interface. The web server software uses the IP address the client connects to in order to determine which web site to show the user.


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