oleg155-server: Warning: Permanently added 'oleg155-server' (ECDSA) to the list of known hosts.

pdsh@oleg155-client: oleg155-server: ssh exited with exit code 2
pdsh@oleg155-client: oleg155-server: ssh exited with exit code 2
pdsh@oleg155-client: oleg155-server: ssh exited with exit code 2