Uses of Virtual Domain

Virtual hosting is a method for hosting multiple domain names in a
single server. It
 allows only one server to share its resource such as
memory cycle and processor cycle web server is usually used in the
term of virtual hosting to carry over the internet services.
most important application in share web hosting and there are 2 main
types of virtual domain hosting, name based and IP  based. real IP  based
virtual at domains where u have allocated an IP address to each
virtual domain the server can use in virtual active directory
domain service to interface and use the hyper v role, u must have the host
computer on which virtual domain controller are running must be managed
as carefully as a writeable a virtual main box domain is all
so a domain used to receive email but you do not use system uses VD
provide multi domain capability without changing the joomla
core files or tables.
IP based virtual host use the IP address to the connections to
determine the server based domain. Virtual hosting is a method for hosting multiple domainnames (with separate handling of each name) on a single server (or pool of servers). This allows one server to share its resources, such as memory and processor cycles, without requiring all services provided to use the same host name.