redirect additional subdomain in htaccess - apache

Question

I have a problem with an redirect.
I have this code in my htaccess file.
RewriteCond %{HTTP_HOST} ^frutasadomicilio.cl
RewriteRule ^ http://www.frutasadomicilio.cl%{REQUEST_URI} [L,R=301]
Redirect 301 /index.html http://www.frutasadomicilio.cl/venta-de-verduras
Redirect 301 http://frutasadomicilio.cl http://www.frutasadomicilio.cl/venta-de-verduras
This code is working fine. This code redirects all requests without www to www.
But my problem is when I try to access resources.frutasadomicilio.cl that is a subdomain, I am redirected to www.frutasadomicilio.cl/venta-de-verduras.

Answer 1

I assume your subdomain points to a subdirectory off the document root of the main domain (a common setup)? eg. resources. -> /resources/...?
The problem in this case is that the .htaccess file from the parent directory on the filesystem is inherited. So, a request for resources.example.com will result in a redirect (Redirect 301 /index.html ...).
Also, you should not mix mod_alias redirects (ie. Redirect) with mod_rewrite redirects (ie. RewriteRule). If you are using mod_rewrite then only use mod_rewrite.
Redirect 301 http://frutasadomicilio.cl http://www.frutasadomicilio.cl/venta-de-verduras
This line actually does nothing and should be removed. Redirect takes a root-relative path (starting with a slash) as the source path, not an absolute path, so this will never match.
The last two Redirects can be rewritten as the following (using mod_rewrite) to avoid your unwanted redirection:
RewriteCond %{HTTP_HOST} ^www\.
RewriteRule ^(index\.html)?$ /venta-de-verduras [R=301,L]
Now, the redirection only occurs when the host starts www. (so excludes resources.).
Alternatively, you can omit the above RewriteCond directive and include an .htaccess file in the /resources subdirectory with the following directive.
RewriteEngine On
mod_rewrite directives are not inherited by default, so by simply enabling the rewrite engine in the subdirectory prevents the mod_rewrite directives in the parent .htaccess from being executed (note that other modules in the parent .htaccess file are still processed). This might be preferable if you have a lot of redirects in the parent .htaccess file that need to be excluded.