haproxy rails ip

haproxy不能正確記錄客戶端的IP
關於 rails 的扔remote_ip
http://kkito.cn/index.php/blog/getArticle/102/rails%E4%B8%AD%E5%BA%94%E6%B3%A8%E6%84%8F%E5%8F%AF%E8%83%BD%E5%AE%A2%E6%88%B7%E7%AB%AFip%E5%9C%B0%E5%9D%80%E6%98%AF%E4%BC%AA%E8%A3%85%E7%9A%84