void Config1() {
    //		Now, let's configure the port on which the default listener waits for connections.

    FtpServerFactory serverFactory = new FtpServerFactory();

    ListenerFactory factory = new ListenerFactory();

    PropertiesUserManagerFactory userManagerFactory = new PropertiesUserManagerFactory();

    String[] str = {"mkdir", ftpConfigDir};
    try {
      Process ps = Runtime.getRuntime().exec(str);
      try {
        ps.waitFor();
      } catch (InterruptedException e) {
        e.printStackTrace();
      }
    } catch (IOException e) {
      e.printStackTrace();
    }

    String filename = ftpConfigDir + "users.properties"; // "/sdcard/users.properties";
    File files = new File(filename);

    userManagerFactory.setFile(files);
    serverFactory.setUserManager(userManagerFactory.createUserManager());
    // set the port of the listener
    factory.setPort(2221);

    // replace the default listener
    serverFactory.addListener("default", factory.createListener());

    // start the server
    FtpServer server = serverFactory.createServer();
    this.mFtpServer = server;
    try {
      server.start();
    } catch (FtpException e) {
      e.printStackTrace();
    }
  }
  void Config2() {
    //		Now, let's make it possible for a client to use FTPS (FTP over SSL) for the default
    // listener.

    FtpServerFactory serverFactory = new FtpServerFactory();

    ListenerFactory factory = new ListenerFactory();

    // set the port of the listener
    factory.setPort(2221);

    // define SSL configuration
    SslConfigurationFactory ssl = new SslConfigurationFactory();
    ssl.setKeystoreFile(new File(ftpConfigDir + "ftpserver.jks"));
    ssl.setKeystorePassword("password");

    // set the SSL configuration for the listener
    factory.setSslConfiguration(ssl.createSslConfiguration());
    factory.setImplicitSsl(true);

    // replace the default listener
    serverFactory.addListener("default", factory.createListener());

    PropertiesUserManagerFactory userManagerFactory = new PropertiesUserManagerFactory();
    userManagerFactory.setFile(new File(ftpConfigDir + "users.properties"));

    serverFactory.setUserManager(userManagerFactory.createUserManager());

    // start the server
    FtpServer server = serverFactory.createServer();
    this.mFtpServer = server;
    try {
      server.start();
    } catch (FtpException e) {
      e.printStackTrace();
    }
  }