> let's remain on sftp topic..
I finally managed to receive the proper answers from my hosting that permitted me change sshd port successfully. On the other hand I came across some Linoox doc about how-to produce a chroot ssh environment to make the sshd_config settings meaningful and running and from my understanding I consider all that effort a little overwhelming against my necessities, at time. However, I want thank all for your answers. -- Daniele Bonini