Remove perl from the equation. Deduce how you would connect to each system and complete your task. If you can't do this without installing any additional software then script the process in perl. This doesn't seem like a perl specific issue, sounds more like something missing in your corporate infrastructure/asset management solution.

You surely must have a consistent system for administrating these boxes with hundreds of them, no? If you could access all those boxes without any credentials whatsoever, couldn't anyone else?

Do you have an account that can list "dollar sign" shares on the Windows servers? That might be an option. For Linux though, there isn't much you can do unless you export the whole filesystem in NFS with no auth necessary, but that's a really bad idea.

Whenever you connect to another server, you pretty much need to have an account (login) to do anything.

Thank you all for your quick responses. Your responses was what I thought they would be but I need to ask them to cover all my bases for the Perl project I am working on. All have a good rest of the day.