[2] It's been a few months, but I remember getting the license activated offline was a weird process. Something like, point tabadmin toward a license file, which generates a number or json or some other file, which you then paste into or point the UI toward, which gives you another file to use in tabadmin... and at the end tabadmin gave me error. Now when I go to "Manage Product Keys" it acts as though it is unregistered, but the server still starts without error (it did not before the failed activation ritual).
I do have a ticket in with support for [1]. Given how much of a bitch it was to activate (or half-activate) I'm reluctant to investigate [2] further.
Also, I'd like to see a linux server. Tableau is our only Windows server, which weighed heavily against the product when we were considering alternatives.