USAGE
        Host <hostname>|<ip address>

DESCRIPTION
        Tells information about an Internet host. The host can be identified
        using a host name (for example, aripisa.ampr.org) or an IP 
        address (for example, 44.134.208.29).

        Returns the host name, IP addresses and known aliases for the host.
        The information is gathered from the DNS (domain name service).