public void startHub() throws Exception {
GridHubConfiguration gridHubConfig = new GridHubConfiguration();
// gridHubConfig.setHost("172.27.68.139");
// gridHubConfig.setPort(4444);
myHub = new Hub(gridHubConfig);
myHub.start();
DesiredCapabilities capability = BaseHub.getCapabilities(Browser.FIREFOX);
SelfRegisteringRemote remoteWebDriverNode = attachNodeToHub(capability,
GridRole.NODE, 1222, SeleniumProtocol.WebDriver);