I stand corrected, you are right, but due to the odd behaviour of SFTP (see for example PM search "Net::SFTP"), I switched back to the plain old Net:FTP (for the "employer" didn't care too much about it anyway ;)

Your coding seems valid, yet I made a mistake of believing "StrictHostKeyChecking no" (as found in `man ssh_config`) would work with Net::SSH::Perl, but it doesn't, so basically, the "ssh_args" flag is useless in my case anyway ;)