Whenever I’ve got a lot of data to transfer I usually kick off the rsync or scp with the default SSH settings and then, after an hour or so, wonder if I could have sped things up with a different cipher. So I decided to find out now for my future self and maybe save some time. A quick not about SSH Ciphers SSH uses several ciphers and algorithms. I have encountered lots of sysadmins that think their choice of SSH key determines their transfer speed. SSH keys are only used by SSH to transmit...
