def get_server(key, server=MAIN_SERVER, servers=LOAD_SERVERS):

    """ given a key, get the IP address of the server that has the pvt key that
        owns the name/key
    """

    namecoind = NamecoindClient(NAMECOIND_SERVER, NAMECOIND_PORT,
                                NAMECOIND_USER, NAMECOIND_PASSWD)

    info = namecoind.name_show(key)

    if 'address' in info:
        return check_address(info['address'], server, servers)

    response = {}
    response["registered"] = False
    response["server"] = None
    response["ismine"] = False
    return response
given a key, get the IP address of the server that has the pvt key that
        owns the name/key