Internet hostnames

On the Internet, a hostname is a area name assigned to a host computer. This is usually a aggregate of the host's bounded name with its ancestor domain's name. For example, en.example.org consists of a bounded hostname (en) and the area name example.org. The hostname is translated into an IP abode via the bounded hosts file, or the Area Name Arrangement (DNS) resolver. It is accessible for a distinct host computer to accept several hostnames; but about the operating arrangement of the host prefers to accept one hostname that the host uses for itself.

Any area name can additionally be a hostname, as continued as the restrictions mentioned beneath are followed. For example, both "en.example.org" and "example.org" can be hostnames if they both accept IP addresses assigned to them. The area name "xyz.example.org" may not be a hostname if it does not accept an IP address, but "aa.xyz.example.org" may still be a hostname. All hostnames are area names, but not all area names are hostnames.