允许其他人通过亚马逊实例查看您的Sinatra本地服务器

It's really difficult to explain. But basically, I have an amazon instance, and I want to ssh into it and run a local server on it with sinatra. so I would ssh into the amazon instance, git clone my repo, and run ruby config.ru. Then I want someone else to be able to see that exact local server that is being ran. One of the things I've done is added a security group, port 4567 HTTP so that I can access it via public dns. It works on a rack app but it doesn't work on the sinatra, I've even tried a 'hello world' sample app to try to get it working. It's really difficult to explain. But basically