网站一直要求下载 ruby​​ 文件？

我是红宝石开发的新手。我尝试在 Ubuntu 14.04 上安装 phusion 乘客并将其与 apache 集成。

我完成了此页面的第 2.3 步： https ://www.phusionpassenger.com/documentation/Users%20guide%20Apache.html

但是，当我访问类似 url 时http://192.168.0.105/suburl/home.rb，浏览器会下载 rb 文件，而不是将其作为网页提供。

我迷失在所有的指示中。谁能建议我接下来应该做什么来让我的 home.rb 简单地运行它 puts "hello world"？

这是我的 /etc/apache/sites-enabled/000-default

<VirtualHost *:80>
        # The ServerName directive sets the request scheme, hostname and port that
        # the server uses to identify itself. This is used when creating
        # redirection URLs. In the context of virtual hosts, the ServerName
        # specifies what hostname must appear in the request's Host: header to
        # match this virtual host. For the default virtual host (this file) this
        # value is not decisive as it is used as a last resort host regardless.
        # However, you must set it for any further virtual host explicitly.
        #ServerName www.example.com

        ServerAdmin webmaster@localhost
        DocumentRoot /var/www/html

        # Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
        # error, crit, alert, emerg.
        # It is also possible to configure the loglevel for particular
        # modules, e.g.
        #LogLevel info ssl:warn

        ErrorLog ${APACHE_LOG_DIR}/error.log
        CustomLog ${APACHE_LOG_DIR}/access.log combined

        # For most configuration files from conf-available/, which are
        # enabled or disabled at a global level, it is possible to
        # include a line for only one particular virtual host. For example the
        # following line enables the CGI configuration for this host only
        # after it has been globally disabled with "a2disconf".
        #Include conf-available/serve-cgi-bin.conf
</VirtualHost>

# vim: syntax=apache ts=4 sw=4 sts=4 sr noet

我看到passenger.load 也在mods-enabled 目录中。