oleg440-server: Warning: Permanently added 'oleg440-server' (ECDSA) to the list of known hosts.

pdsh@oleg440-client: oleg440-server: ssh exited with exit code 2
pdsh@oleg440-client: oleg440-server: ssh exited with exit code 2
pdsh@oleg440-client: oleg440-server: ssh exited with exit code 2