Can i create simple chat app where e.g. client.html is on my localhost server, and server.js is uploaded on nodester.com and running online (using socket.io)?
For example, how can I adapt the simple chat code in this question for working in the way described above (server.js on some server online and client.html on my localhost)?
Absolutely. Have a chat application running on AWS and the chat client running on localhost. Presume it should be possible with the others too.