Web Services on Render only respond to HTTP requests, relatedly, Render only responds to public requests on ports 80/443, the standard HTTP/HTTPS ports, and always redirects HTTP to HTTPS.
FTP services cannot be hosted as Web Services on Render.
Web Services on Render only respond to HTTP requests, relatedly, Render only responds to public requests on ports 80/443, the standard HTTP/HTTPS ports, and always redirects HTTP to HTTPS.
FTP services cannot be hosted as Web Services on Render.