How to make a www to non-www redirect htaccess rule?

[borzaka]

This is the default .htaccess:

# Necessary to prevent problems when using a controller named "index" and having a root index.php
# more here: http://httpd.apache.org/docs/2.2/content-negotiation.html
Options -MultiViews

# Activates URL rewriting (like myproject.com/controller/action/1/2/3)
RewriteEngine On

# Prevent people from looking directly into folders
Options -Indexes

# If the following conditions are true, then rewrite the URL:
# If the requested filename is not a directory,
RewriteCond %{REQUEST_FILENAME} !-d
# and if the requested filename is not a regular file that exists,
RewriteCond %{REQUEST_FILENAME} !-f
# and if the requested filename is not a symbolic link,
RewriteCond %{REQUEST_FILENAME} !-l
# then rewrite the URL in the following way:
# Take the whole request filename and provide it as the value of a
# "url" query parameter to index.php. Append any query string from
# the original URL as further query parameters (QSA), and stop
# processing this .htaccess file (L).
RewriteRule ^(.+)$ index.php?url=$1 [QSA,L]

Where to put this code, to work?

RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^(.*)$ http://%1/$1 [R=301,L]

[borzaka]

I have figured out. I had to modify the outer .htaccess, not the one that inside the public folder:

# This file is - if you set up MINI correctly - not needed.
# But, for fallback reasons (if you don't route your vhost to /public), it will stay here.
RewriteEngine on
RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^(.*)$ http://%1/$1 [R=301,L]
RewriteRule ^(.*) public/$1 [L]