You can configure a single Windows Server 2003-based computer to host multiple Web sites where each Web site is distinct and separate, with separate Web content and permissions. To create a virtual server, you map a new Web site to the content folder that you want. This Web content can be on the local computer or on a remote share. Virtual servers are defined by a combination of the following three parameters:
The Internet Protocol (IP) address that is assigned to the Web site
The Transmission Control Protocol (TCP) port number that is assigned to the Web site
The host header name that is assigned to the Web site
As long as one parameter is unique to each virtual server, they can run at the same time in IIS.
For example, you can have multiple Web sites that are all mapped to the same IP address and that all use the default TCP port 80 as long as you assign a unique host header name to each virtual server.
For more information about how to manage Web sites in IIS 6.0, see the "How to Create Web and FTP Sites" and "Web Site Administration" topics in the Common Administrative Tasks and Server Administration Guide sections in the IIS 6.0 Online Documentation. To view the IIS 6.0 Online Documentation, visit the following Microsoft Web site: