in reply to Re^5: Establishing SSH tunnel and opening another SSH connection through it
in thread Establishing SSH tunnel and opening another SSH connection through it

That was it ! I was pretty sure that ProxyCommand goes by itself, is non-interactive and uses only public key. And whatever is requested in OpenSSH->new() applies to the destination host. Thank you for help
  • Comment on Re^6: Establishing SSH tunnel and opening another SSH connection through it

In Section Seekers of Perl Wisdom