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A have a redirect rule in my .htaccess that forwards agent from A.html to B.html using the following pattern:

Redirect 301 /A.html http://mysite.com/B.html

Since the Redirect directive requires to set the target host, is it possible to let this rule prevail only on a specific host? I have both a test and deploy domain, and only want it on the deploy domain. I can set HTTP conditions for Rewrite rules, but how can I for HTTP Redirects?

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I came to the solution that it cannot be done with pure Redirect directives. If it is needed to redirect visitor in certain HTTP conditions, must use Rewrite rules.

  • See my response for a way to do it with Mod_Rewrite in your .htaccess file. – Chris S Mar 11 '10 at 19:34
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You can actually do this, but you do lose the 301 redirect code.

SetEnvIfNoCase Host "myotherdomain.com" redirectthisdomain

<Files "A.html">
   Order Deny,Allow
   Deny from env=redirectthisdomain

   ErrorDocument 403 http://mysite.com/B.html
</Files>
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just put the redirect rule in the vhost config of your deploy domain. this way it will only be active for this host.

  • I use an external web space therefore I have no permission to the vhost config. That is, I wrote I need to solve my problem in .htaccess. – Török Gábor Jan 20 '10 at 13:29
  • can you use rewrite? the apache rewrite doc has an example which matches your problem: httpd.apache.org/docs/2.0/misc/rewriteguide.html#url – Christian Jan 20 '10 at 13:57
  • Yes, I know Rewrite provides solution for my problem, but I'm curious if it's possible using Redirect. – Török Gábor Jan 21 '10 at 8:29
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My scenario is: two domain (domain.org and domain.info) pointing to the same site, and I want that .info is uses instead of .org

The site is written in PHP and at the very beginning of each page there is someting like this

if (stristr($_SERVER['SERVER_NAME'], 'domain.org') === FALSE) {
    // do standard initial operations
} else {
    // insert here the code to rebuild the correct path and put it in $newpath
    header("HTTP/1.1 301 Moved Permanently");
    header("Location: http://www.domain.info/$newpath");
}

In this way you inform both the users and the search engines crawler about your configuration.

  • @Irosa: You're right, but I do not use PHP but static HTML files. I'm looking for a solution with pure Redirect rules in my .htaccess but it seems so they are not capable in this case. – Török Gábor Jan 26 '10 at 9:29
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A quick example, if the visitor goes to dev.example.com/A.html then they get redirected to B.html. If they go to www.example.com/A.html then they get redirected to C.html; both with the 301 redirect.

RewriteEngine on
RewriteCond %(HTTP_HOST) ^dev.example.com$ [NC]
RewriteCond %(REQUEST_URI) ^/A.html
RewriteRule ^(.*)$ http://dev.exmaple.com/B.html [R=301]

RewriteCond %(HTTP_HOST) !^dev.example.com$ [NC]
RewriteCond %(REQUEST_URI) ^/A.html
RewriteRule ^(.*)$ http://dev.exmaple.com/C.html [R=301]

You can read more about Mod_Rewrite at Apache's website.

  • thanks I know it. I do know Rewrite rules. I was curious if I can do the same with simply Redirect rules. – Török Gábor May 7 '10 at 9:21

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