Hello, friend!
You can run the ftp set command to set the FTP user name and password. When you need to set or change the user name and password of the FTP client, the user name and password must be the same as those configured on the FTP server, and the user name and password are used for authentication when the FTP server requests data transmission, run this command. After you set the FTP user name and password, you need to enter the user name and password when you use FTP to transfer files.
Thanks!