How do you use an identity file with rsync?
Use either $HOME rsync -avz -e “ssh -p1234 -i \”$HOME/.ssh/1234-identity\”” dir remoteUser@server: or full path to the key: rsync -avz -e “ssh -p1234 -i /home/username/.ssh/1234-identity” dir user@server: Tested with rsync 3.0.9 on Ubuntu