I want to run a Mac in the cloud as a webserver and for facilitative use. I've secured most of my used tools already, but I was wondering about the OS itself.
Imagine I'm running an up-to-date Yosemite. How could I check what information a third party could obtain from the device. If information could be found, how to hide it?
I noticed some SSH services on Linux servers bluntly giving their exact OS version until the release number. I would want to prevent stuff like that being broadcasted and just wanted to double-check if OS X would broadcast such and how to obfuscate it or hide it fully. I can understand I can't hide my server is running OS X, but I would at least not like the external party to know more details if they were broadcasted.