oleg455-server: Warning: Permanently added 'oleg455-server' (ECDSA) to the list of known hosts.

pdsh@oleg455-client: oleg455-server: ssh exited with exit code 2
pdsh@oleg455-client: oleg455-server: ssh exited with exit code 2
pdsh@oleg455-client: oleg455-server: ssh exited with exit code 2