title: Do I need to specify a client for connect-redis?
body: <p>I'm trying to use redis on a node express server to store user sessions, by using the connect-redis(<a href="https://github.com/tj/connect-redis" rel="nofollow">on Github</a>) library. And I find this block of settings works well:</p>
  
  <pre><code>var app = express();
  
  app.use(session({
    secret: 'hahahahahahahahahaha',
    cookie: { maxAge: 36000000 },
    store: new redisStore(),
  }))
  </code></pre>
  
  <p>Notice I didn't pass any params to <code>new redisStore()</code> and it also works for now (in its documentation a <code>client</code> is passed), guess it's using localhost and default port by default. </p>
  
  <p>But I'm worrying, if I put my server on AWS EC2 in the future which is a shared server, will that be a problem if I don't specify a client? Say, will redis conflicts with other servers also hosting on that EC2?</p>