new

# File lib/resolv.rb, line 733
        def initialize(host, port=Port)
          super()
          @host = host
          @port = port
          is_ipv6 = host.index(':')
          sock = UDPSocket.new(is_ipv6 ? Socket::AF_INET6 : Socket::AF_INET)
          @socks = [sock]
          sock.do_not_reverse_lookup = true
          sock.fcntl(Fcntl::F_SETFD, Fcntl::FD_CLOEXEC) if defined? Fcntl::F_SETFD
          DNS.bind_random_port(sock, is_ipv6 ? "::" : "0.0.0.0")
          sock.connect(host, port)
        end