Once you establish an SSH session with the remote machine, locate the file you wish to copy. The "scp" command is a better option if you have only a few files to transfer.

This is a step-by-step guide on how to compare the contents of local and remote files with the help of SSH. Watch our related video tutorial.

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.