Hello,
I'm  using  Odoo  14  Enterprise  on  odoo.sh.  I  have  SSH  access  only  using  Putty,  any  other  ssh  client,  for  some  reason,  is  always  refused  to  connect.  I  tried  several  ssh  keypairs,  generated  by  puttygen  and ssh-keygen.
But, I'm trying to create a full backup using sftp or rsync, connecting from my computer to Odoo.sh. None of the following methods worked:
- Directly using rsync: some type of protocol error
- Filezilla: Connects, send username and server close connection
- WinSCP SFTP: Cannot initialize SFTP protocol. Is the host running an SFTP server?
- WinSCP SCP: Server refused to start a shell/command
Even tried with a TrueNAS box, using Cloud backup function. Added the keypair, and got error: Failed to create file system for "remote:/": NewFs: couldn't initialise SFTP: ssh: unexpected packet in response to channel open:
With  TrueNAS  even  created  a  new  SSH   keypair  with  build-in  function  and  added  public  key  to  my  profile  in  odoo.sh.  Same  error.
In  all  cases  the  host,  port  and  username  is  correct.  Remember  that  I  can  access  bare  SSH  using  PuTTY. 
Anybody knows if the ssh server in odoo.sh don't support file transfer over SSH ?
So, what can I do to upload new modules to the server ?
Thanks!    
 
                        
Did you find a solution for this? I am trying to import some files from my laptop to the shell as well