我正在尝试使用多个域在同一个 VPS 上托管多个不同的 Rails 应用程序。我在 Ubuntu 10.10 上使用 Apache 2.2.17。对于 Apache，我有多个 vhost 文件，这样我就可以轻松地启用和禁用特定站点，而无需将它们注释掉或删除它们。此外，我还使用了 mod_rewrite，以便访问同一个 rails 应用程序的多个域看起来访问同一个 URL，因此我不会因为重复内容而受到搜索引擎的打击。
我相信我的 DNS 设置正确。对于每个域，我都有一个www子域以及一些特定于站点的子域，例如博客等。我看到的问题是 Apache 似乎www立即匹配子域，而不是检查它后面的附加 URL。改变ServerAlias什么也没做。例如，使用我的设置，如果我输入davidheartsrachel.com，我会正确访问我的婚礼网站。但是，如果我使用www.davidheartsrachel.com，我会访问我的另一个网站，即我的软件开发业务。URL 不会被重写；它保持不变，davidheartsrachel.com而不是afewguyscoding.com.
我能够使其正常工作的唯一方法是在主 vhost 文件中使用 mod_rewrite 以重定向到婚礼网站 vhost 文件（您可以看到我在主 vhost 文件中有它，但它被注释掉了这个问题的目的）。这对我来说似乎不合适？我应该获得另一个 IP 并使用 IP 虚拟主机而不是基于名称的虚拟主机吗？
当我执行apachectl -S时，我得到以下信息：
VirtualHost configuration:
wildcard NameVirtualHosts and _default_ servers:
*:80 is a NameVirtualHost
default server afewguyscoding.com (/etc/apache2/sites-enabled/afewguyscoding.com:1)
port 80 namevhost afewguyscoding.com (/etc/apache2/sites-enabled/afewguyscoding.com:1)
port 80 namevhost blog.afewguyscoding.com (/etc/apache2/sites-enabled/afewguyscoding.com:69)
port 80 namevhost lbbs.afewguyscoding.com (/etc/apache2/sites-enabled/afewguyscoding.com:84)
port 80 namevhost davidheartsrachel.com (/etc/apache2/sites-enabled/davidheartsrachel.com:1)
port 80 namevhost dhr.afewguyscoding.com (/etc/apache2/sites-enabled/davidheartsrachel_staging:1)
Syntax OK
我注意到这afewguyscoding.com是默认站点 - 但是，它是否必须进行完整的字符串匹配才能确定正确的站点？
主站点的 vhost 文件
<VirtualHost *:80>
ServerAdmin david.stites@afewguyscoding.com
ServerName afewguyscoding.com
ServerAlias davidstites.com, 5280software.com, milehigh-software.com, milehighsoftware.org
ServerAlias www.5280software.com, www.milehigh-software.com, www.milehighsoftware.org, www.davidstites.com, www.afewguyscoding.com
# this tells rails that it will run in production mode
# this is for rails < 3.x
RailsEnv production
DocumentRoot /var/www/afewguyscoding/current/public
DirectoryIndex index.html
# custom log file locations
# possible values include: debug, info, notice, warn, error, crit,
# alert, emerg.
LogLevel alert
ErrorLog /var/www/afewguyscoding/current/log/error.log
CustomLog /var/www/afewguyscoding/current/log/access.log combined
# allows compression of text based mime.types
AddOutputFilterByType DEFLATE text/html text/plain text/xml text/javascript text/css application/x-javascript
BrowserMatch ^Mozilla/4 gzip-only-text/html
BrowserMatch ^Mozilla/4\.0[678] no-gzip
BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
FileETag None
RewriteEngine On
# check for maintenance file and redirect all requests
RewriteCond %{DOCUMENT_ROOT}/system/maintenance.html -f
RewriteCond %{REQUEST_URI} !\.(css|jpg|png|gif)$
RewriteCond %{REQUEST_URI} !^/ws/
RewriteCond %{SCRIPT_FILENAME} !maintenance.html
RewriteRule ^.*$ /system/maintenance.html
#RewriteCond %{HTTP_HOST} ^www.davidheartsrachel.com$
#RewriteRule ^(.*)$ http://davidheartsrachel.com$1 [L]
RewriteCond %{HTTP_HOST} ^www.davidstites.com$
RewriteRule ^(.*)$ http://www.afewguyscoding.com$1 [R=301,L]
<Directory /var/www/afewguyscoding/current/public>
Options Indexes FollowSymLinks MultiViews
AllowOverride All
Order allow,deny
allow from all
</Directory>
# In case I ever need CGI
#ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
#<Directory "/usr/lib/cgi-bin">
# AllowOverride None
# Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
# Order allow,deny
# Allow from all
#</Directory>
# how we can restrict access to documents from the local subnet
#Order deny,allow
#Deny from all
#Allow from 127.0.0.0/255.0.0.0 ::1/128
<Location /blog>
PassengerEnabled off
</Location>
</VirtualHost>
<VirtualHost *:80>
ServerAdmin info@afewguyscoding.com
ServerName blog.afewguyscoding.com
DocumentRoot /var/www/wpress
DirectoryIndex index.php
<Directory /var/www/afewguyscoding/current/public>
Options Indexes FollowSymLinks MultiViews
AllowOverride All
Order allow,deny
allow from all
</Directory>
</VirtualHost>
婚礼现场的虚拟主机文件
<VirtualHost *:80>
ServerAdmin info@davidheartsrachel.com
ServerName davidheartsrachel.com
ServerAlias rachelanddavid.net, rachelanddavidstites.com, rachelanddavidwedding.com
ServerAlias www.davidheartsrachel.com, www.rachelanddavidstites.com, www.rachelanddavidwedding.com, www.rachelanddavid.net
# this tells rails that it will run in production mode
# this is for rails < 3.x
RailsEnv production
# this is for rails >= 3.x
RackEnv production
DocumentRoot /var/www/davidheartsrachel/current/public
DirectoryIndex index.html
# Custom log file locations
# Possible values include: debug, info, notice, warn, error, crit, alert and emerg,
LogLevel alert
ErrorLog /var/www/davidheartsrachel/current/log/error.log
CustomLog /var/www/davidheartsrachel/current/log/access.log combined
# Allows compression of text based mime types
AddOutputFilterByType DEFLATE text/html text/plain text/xml text/javascript text/css application/x-javascript
BrowserMatch ^Mozilla/4 gzip-only-text/html
BrowserMatch ^Mozilla/4\.0[678] no-gzip
BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
FileETag None
RewriteEngine On
# Check for maintenance file and redirect all requests
RewriteCond %{DOCUMENT_ROOT}/system/maintenance.html -f
RewriteCond %{REQUEST_URI} !\.(css|jpg|png|gif)$
RewriteCond %{SCRIPT_FILENAME} !maintenance.html
RewriteRule ^.*$ /system/maintenance.html [L]
RewriteCond %{HTTP_HOST} ^www.rachelanddavidwedding.com$
RewriteRule ^(.*)$ http://www.davidheartsrachel.com$1 [R=301,L]
RewriteCond %{HTTP_HOST} ^www.rachelanddavidstites.com$
RewriteRule ^(.*)$ http://www.davidheartsrachel.com$1 [R=301,L]
# Static cache
RewriteCond %{REQUEST_METHOD} !^POST$
RewriteCond /var/www/davidheartsrachel/current/tmp/cache/static$1/index.html -f
RewriteRule ^(.*)$ /var/www/davidheartsrachel/current/tmp/cache/static$1/index.html [L]
<Directory /var/www/davidheartsrachel/current/public>
Options Indexes FollowSymLinks MultiViews
AllowOverride All
Order allow,deny
Allow from All
</Directory>
</VirtualHost>
如果您能想到任何可能有帮助的更多信息，请让我发布。
编辑：
让我试着澄清一下。以最本质的形式，我的问题是：根据我上面的配置，为什么要去 davidheartsrachel.com 会带你到 www.afewguyscoding.com 和 davidheartsrachel.com 会带你到 davidheartsrachel.com