在apache中设置子域

因此，我在一台服务器上有两个 Web 应用程序。我有一个在使用常规域时提供的主域，但我希望一个子域指向另一个应用程序。

我已经按照我在谷歌搜索中找到的方式设置了虚拟主机，但它仍然不起作用。子域只是提供主应用程序。这是我的配置文件的内容。

<VirtualHost *:80>
        ServerName www.luketimoth.me
        DocumentRoot /var/www/luketimothy/public

       <Directory /var/www/luketimothy/public>
          <IfModule mod_rewrite.c>
          Options -MultiViews
          RewriteEngine On
          RewriteCond %{REQUEST_FILENAME} !-f
         RewriteRule ^ index.php [L]
         </IfModule>
       </Directory>
</VirtualHost>

<VirtualHost *:80>
        ServerName www.luketimoth.me
        DocumentRoot /var/www/shattered-plays/public
        ServerAlias shattered.luketimoth.me

        <Directory /var/www/shattered-plays/public>
          PassengerEnabled on
        </Directory>
</VirtualHost>

据我所知（以我对 Apache 的初学者/基本知识），这应该符合我的期望......但事实并非如此。我究竟做错了什么？

的输出httpd -S

httpd: apr_sockaddr_info_get() failed for LMTServe
httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName
[Sat May 17 16:42:02 2014] [warn] _default_ VirtualHost overlap on port 80, the first has precedence
VirtualHost configuration:
wildcard NameVirtualHosts and _default_ servers:
*:80                   www.luketimoth.me (/etc/httpd/conf/httpd.conf:1017)
*:80                   www.luketimoth.me (/etc/httpd/conf/httpd.conf:1031)
Syntax OK

编辑：

我已更改虚拟主机以使用所需的子域作为 ServerName，但我仍然看到同样的问题。

<VirtualHost *:80>
        ServerName www.luketimoth.me
        DocumentRoot /var/www/luketimothy/public

       <Directory /var/www/luketimothy/public>
          <IfModule mod_rewrite.c>
          Options -MultiViews
          RewriteEngine On
          RewriteCond %{REQUEST_FILENAME} !-f
         RewriteRule ^ index.php [L]
         </IfModule>
       </Directory>
</VirtualHost>

<VirtualHost *:80>
        ServerName shattered.luketimoth.me
        DocumentRoot /var/www/shattered-plays/public

        <Directory /var/www/shattered-plays/public>
          PassengerEnabled on
        </Directory>
</VirtualHost>

httpd: apr_sockaddr_info_get() failed for LMTServe
httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName
[Sun May 18 10:15:24 2014] [warn] _default_ VirtualHost overlap on port 80, the first has precedence
VirtualHost configuration:
wildcard NameVirtualHosts and _default_ servers:
*:80                   www.luketimoth.me (/etc/httpd/conf/httpd.conf:1017)
*:80                   shattered.luketimoth.me (/etc/httpd/conf/httpd.conf:1031)
Syntax OK