[~/src/Net-SSH-0.01] $ perl -Iblib/lib -mNet::SSH $s=Net::SSH::->new("host1"); $s->login("xxxxx","xxxxx"); print $s->cmd("ls"); __END__ Received server public key (768 bits) and host key (1024 bits). Corrupted check bytes on input at blib/lib/Net/SSH.pm line 135 [~/src/Net-SSH-0.01] $ perl -Iblib/lib -mNet::SSH $s=Net::SSH::->new("host2"); $s->login("xxxxx","xxxxx"); print $s->cmd("ls"); __END__ Received server public key (768 bits) and host key (1024 bits). Didn't expect to get packet of type 15 at - line 3 [~/src/Net-SSH-0.01] $ perl -Iblib/lib -mNet::SSH $s=Net::SSH::->new("host3"); $s->login("xxxxx","xxxxx"); print $s->cmd("ls"); __END__ Received server public key (768 bits) and host key (1024 bits). Can't open /etc/ssh_known_hosts: No such file or directory at - line 3