webhosting methos in business management

Multi-page, commercial Web sites are hosted at a very wide range of prices, and the customer's registered domain name is used. A single computer can hold dozens to hundreds of small Web sites, while a dedicated computer or multiple computers may be used for one large Web site.In IP-based virtual hosting each site points to a unique IP address. The web server is configured with multiple physical network interfaces, virtual network interfaces on the same physical interface or multiple IP addresses on one interface.The web server can obtain the address the TCP connection was intended for using a standard API and use this to determine which website to serve. The client is not involved in this process and therefore there are no compatibility issues.
The default port number for HTTP is 80. However, most webservers can be configured to operate on almost any port number, provided the port number is not in use by any other program on the server.
For instance, a server may host the website www.example.com. However, if they wish to operate a second site, do not have access to the domain name configuration for their domain name, and/or own no other IP addresses which they could use to serve the site from, they could instead use another port number, for example, www.example.com:81 for port 81, or www.example.com:8000 for port 8,000.
Virtual web hosting is often used on large scale in companies whose business model is to provide low cost website hosting for customers. The vast majority of such web hosting service customer websites worldwide are hosted on shared servers, using virtual hosting technology.Many businesses utilize virtual servers for internal purposes, where there is a technology or administrative reason to keep several separate websites such as customer extranet website, employee extranet, internal intranet, intranets for different departments If there are not security concerns in the website architectures, they can be merged into a single server using virtual hosting technology, which reduces management and administrative overhead and the number of separate servers required to support the business Making a Web site available on the Internet.