my $sftp_obj = Net::SFTP::Foreign->new (
                        $host,
                        timeout         => 3600,
                        ssh_cmd         => "/usr/bin/ssh",
                        user            => $username,
                        password        => $passwd,
                        port            => 22,
                        autodisconnect  => 0,
                        more            => ['-vvv',
                        -o => 'StrictHostKeyChecking no'],
        );