gistfile1.txt

The "sys" module is now called "util". It should have a similar interface.
   info  - socket.io started
   app listening on http://0.0.0.0:3000

node.js:202
        throw e; // process.nextTick error, or 'error' event on first tick
              ^
Error: connect Unknown system errno 65
    at errnoException (net.js:589:11)
    at connect (net.js:473:18)
    at net.js:531:9
    at asyncCallback (dns.js:84:16)
    at Object.onanswer [as oncomplete] (dns.js:137:9)