It's not just having the servers, but also the expertise and domain knowledge. Putting aside application specific knowledge (e.g. running SAS or the like), not

It's not just having the servers, but also the expertise and domain knowledge. Putting aside application specific knowledge (e.g. running SAS or the like), not all large companies have in-house expertise that can administer a Linux virtual machine. In my experience, it's not surprising to find IT departments that don't even know about ssh. Remember, there are more enterprises than technology enterprises. Finance, audit, law firms, oil and gas, insurance, these places often don't have the in-house experience to run non-Windows tech stacks.