VPS for automatic strategy https://www.vpsserver.com/?affcode=3b8e9d71f8ae

Hi guys.
I want to place an automatic strategy on the trading platform Ninja Trader 8.
He stopped his choice on service VPS.
But I have a problem choosing the configuration of the server and the operating system. What operating system to choose? How much RAM and processor cores do you need for comfortable work? I would be grateful for the answers of experienced traders. Thank.