If it works, then you check rsync and Delta Copy. Are you trying to use the root login? - most setups block remote login as root, so you can't login directly as root via ssh.

Learn how to copy files from Windows to Linux using PowerShell. Use Copy-Item cmdlet to transport files using PowerShell Remoting Over SSH.

Jack Wallen continues his Linux 101 series, with an introduction on how to copy files and directories from the command line.

Here's how to use the secure copy command, with SSH key authentication, for a more secure way to copy files to your remote Linux servers.

Copying files and directories using the Linux command line is efficient and can be used while sitting at the machine or when accessing a system remotely.