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Deepak Mittal
Asked: 2010-01-25 04:34:04 +0800 CST

Apache Rewrite: How to write a rule based on domain name (instead of HTTP_HOST)?

  • 772

I have written a RewriteRule which works on the basis of HTTP_HOST (www.domainname.com), but I want it to work on the basis of the domain name part only (domainname.com).

To clarify further

The folder structure is /var/www/domainName.com.

When I write this rule in apache conf file

RewriteRule ^/js/(.*) /%{HTTP_HOST}/js/$1 [L]

and access the site using www.mydomain.com -- it tries to find the folder /var/www/www.domainName.com, which does not exist.

So, I need to convert the above-mentioned rule to remove the "www" from the HTTP_HOST.

apache-2.2 mod-rewrite

4 Answers

  1. Best Answer

    I would suggest that you redirect requests rather than make the same site available in two places. Either create a new VirtualHost to redirect traffic:

    <VirtualHost *:80>
    ServerName www.domainName.com
    Redirect / http://domainName.com/
</VirtualHost>

    Or add a set of rules above your others that will detect the presence of the www. prefix and redirect the user:

    RewriteCond %{HTTP_HOST} ^www\.(.*) [NC]
RewriteRule /(.*) http://%1/$1 [R,L]

    If you really want your site on both domain names without any redirection, you can use a RewriteCond to pull out just the domain name, and it will be available to the RewriteRule as %1.

    RewriteCond %{HTTP_HOST} ^(?:www\.)?(.*) [NC]
RewriteRule ^/js/(.*) /%1/js/$1 [L]
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  2. I doubt if you can do that, wouldn't it be easier just to create links to appropriate directories?

    ln -s yourdomain.com www.yourdomain.com
    • 1

  3. Have you tried using %{DOCUMENT_ROOT}?

    Also possible, if you have set Servername in your vhost to the same name you use in your directory structure, eg:

    <VirtualHost *:80>
  DocumentRoot /var/www/domainame.com
  ServerName domainame.com
  ServerAlias www.domainame.com
</VirtualHost>

    Then you can use %{SERVER_NAME} in your rewrite-rule.

    • 1

  4. as i understand you question, just set your DocumentRoot to the right directory:

    DocumentRoot /var/www/domainName.com
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