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IP-based virtual hosting is a method to apply different directives based on the IP address and port a request is received on. Most commonly, this is used to serve different websites on different ports or interfaces.
First, it would be useful to define the term “IP.” The letters stand for “Internet protocol,” which is a certain procedure or sequence that must be followed. An IP address is different from a URL or “uniform resource locator” that helps people find your website on the Internet. You use that address to find the site on any computer. The IP is a series of numbers, separated with dots, that is unique to your machine or device and is linked to your domain, or site name. The IP acts like a phone number that you must dial in a certain order to reach the domain. When someone searches your site name, it is similar to looking for your site in a phone book. When they click on the name, it is changed to your IP, which points them to your computer. When you publish a website, you must find a server, or a host that will house your site. Shared hosts are single computers that house many IP addresses. Dedicated hosts, however, are computers that host only one.