simple_sub_server.js

var http = require('http'),
    io = require('socket.io'),
    redis = require('redis');
    
server = http.createServer(function(req,response) {});
server.listen(8080);

var redisConn = redis.createClient();
var socket = io.listen(server);

redisConn.subscribe('updates');
redisConn.on('message', function(channel, mess) {
    socket.broadcast(mess);
})