I have a standard Apache server. Do I need anything special to run a node.js script (http://socket.io/) on the serverside?
Node.js provides its own HTTP server, thus making Apache unnecessary.
If you wish to run Apache and Node.js on the same server, either set node to listen to port 80 and forward unhandled requests to Apache, or vice versa
In both instances, Node/Apache will listen to the publicly open port 80, and forward to Apache/Node listening on some non-public port.
You will need shell access to start the node.js server. So it most likely won't work on shared hosting.
来源：https://stackoverflow.com/questions/4963451/what-do-i-need-to-run-a-node-js-script-on-my-server