code: public void setServer (String hostname, int[] ports, int[] datagramPorts)
      {
          _hostname = hostname;
          _ports = ports;
          _datagramPorts = datagramPorts;
      }
docs: Configures the client to communicate with the server on the supplied hostname, set of
  ports (which will be tried in succession), and datagram ports.
  
  @see #logon
  @see #moveToServer