The author even mentions in the article "No machine"
Which I think is pretty funny. I haven't used it or set it up. I suppose I should try it.
NoMachine is the company that makes the NX protocol. That's all. X2Go is the free implementation of NX/NoMachine that we all use.
Well the freely available NoMachine is more like a team viewer replacement. You only have the single shared session. It also has remote support tools like chat and a whiteboard.
When did that change? I used to use that and it was like X2Go.
I think a while ago. If you want their terminal server version you have to pay for it.
They also have a web based version, but it's also only the paid version.