oleg153-server: Warning: Permanently added 'oleg153-server' (ECDSA) to the list of known hosts.

pdsh@oleg153-client: oleg153-server: ssh exited with exit code 2
pdsh@oleg153-client: oleg153-server: ssh exited with exit code 2
pdsh@oleg153-client: oleg153-server: ssh exited with exit code 2