csshX

Cluster SSH tool for macOS. More information: https://github.com/brockgr/csshx.

Connect to multiple hosts:

csshX {{hostname1}} {{hostname2}}

Connect to multiple hosts with a given SSH key:

csshX {{user@hostname1}} {{user@hostname2}} --ssh_args "-i {{path/to/key_file.pem}}"

Connect to a pre-defined cluster from /etc/clusters:

csshX cluster1