Create a new ssh key pair:
ssh-keygen -t rsa -b 2048 -f ufnec-rsync-key
Move the public key to remote server
scp ufnec-rsync-key.pub [email protected]:/home/ufnec
Add the public key to the authorized_key on the remote server:
ssh -l ufnec 192.168.3.8
cat ufnec-rsync-key.pub >> .ssh/authorized_keys
Test the connection:
ssh -l ufnec -i ~/.ssh/ufnec-rsync-key 192.168.3.8
You should not be prompted for a password.
Test the synchronization:
rsync --progress -avP -e "/usr/bin/ssh -i /home/ufnec/.ssh/ufnec-rsync-key" /home/ufnec/photo/ [email protected]:/home/ufnec/photo/