I have a Cloud Storage that supports only Port 21. So Terminal or SSH won't let me upload file remotely from my Panel to that FTP storage. Is there any solution to achieve this without having to download to my local machine?

    zohebnsr You can transfer files using "FTP Storage" plugin and Cron Job "Backup Directory". If you need to transfer only one file, you can use "ftp" command (example).

        aapanel_user this is not gonna work with 21 Port. As I said the Port is 21 and it cannot be changed for my Cloud Storage. If it was 22, yes it can be done.