How to use rsync to backup over ssh?
rsync is a great tool to back up your work, this is the way I use it the most.
rsync -avz --delete /source/folder email@example.com:/destination/folder
This way it creates a copy of the
/source/folder to the
/destination/folder in the remote server, and if a file has been deleted in the source server, it will be deleted from the remote one.
Now, if you want to run rsync over a different por of ssh, (I usually change the port where ssh listens, for security reasons).
rsync -avz -e 'ssh -p 4000' /source/folder firstname.lastname@example.org:/destination/folder
4000 for the port where you have sshd listening.