Re: And who is to say Linkedin doesn't run on Linux?
If you wanted to find out, you could use telnet to talk raw HTTP to the site and issue a HEAD request. If you're using Windows, this is painful to do (different types of painful depending on the version of Windows/telnet client) but on Linux or even MacOS it's a piece of piss. If you're a wimp you can always try netcraft.com/whats.
Biting the hand that feeds IT
