As I understood from How to use SFTP on a system that requires sudo for root access & ssh key based authentication? question there are not simple ways to use SFTP client with root stuff. I wish to use mobaxterm windows ssh, SFTP client login to Ubuntu server with keys. I log as user that has sudoer privilege. So I can elevate to root. the problem is that mobaxterm SFTP client doesn't have sufficient permissions to write to roots files. Any ideas and workaround for achieve the task?