If you need to install node.js webserver on your VPS Server you can use 1gbits Easy VPS service. With 1gbits Easy VPS you can install Node.js in few clicks without any command. If You need Node js Server you can order here.
What is Node.js?
Node.js® is a platform built on Chrome JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices. 
Node js Installation
We have build video to show how you can run Node js server in few clicks.