If you don't have SSH access then you probably cannot start a Minetest server. Next time, choose an "unmanaged" server host where you have SSH access. ;P
tux_peng wrote:again FTP is insecure, use SFTP (FTP over SSH)
Very few hosts use SFTP, unfortunately. Also, FTP is mostly insecure if you have other potentially "evil" people on your network, if you trust the people on your network the problem is much smaller.