fails:TCPSocket#gethostbyname returns an array elements of information on the hostname
fails:TCPSocket#gethostbyname returns the canonical name as first value
fails:TCPSocket#gethostbyname returns the address type as the third value
fails:TCPSocket#gethostbyname returns the IP address as the fourth value
fails:TCPSocket#gethostbyname returns any aliases to the address as second value
