Virtual hosting refers to the practice of hosting multiple websites on a single server. Virtual Hosts can be name-based, or IP based.

Name-based Virtual Hosts (common in shared hosting environments) differ by their domain name. In a name-based virtual host environment, the websites for example1.com and example2.com would both be hosted on the same machine, with the same IP address.

IP-based Virtual Hosts have a separate IP address for each virtual host. In this case, each separate website would require it's own unique IP address on the machine.

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