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Example Drupal ConfigurationΒΆ

# Do not disclose in the HTTP headers, the fact we run Drupal
# nor the fact we hit or missed a cache (or in fact use server-side
# caching at all).
<IfModule mod_headers.c>
    Header unset X-Drupal-Cache
    Header unset X-Generator
</IfModule>

<Directory "/var/www/html/drupal-$x.$y/">
    # Do not allow anything Drupal to override what we specify here.
    #
    # This includes locations the apache user account (and therefore
    # Drupal itself) can write to, such as sites/default/files/.
    #
    # We do not want Drupal to be able to put a .htaccess in such
    # locations.
    AllowOverride None

    # Grant access, but use the RewriteEngine to block everything we
    # don't approve of.
    #
    Require all granted

    # Don't show directory listings for URLs which map to a
    # directory.
    Options -Indexes

    # Follow symbolic links in this directory.
    Options +FollowSymLinks

    # Make Drupal handle any 403 and 404 errors.
    ErrorDocument 403 /index.php
    ErrorDocument 404 /index.php

    # Set the default handler.
    DirectoryIndex index.php index.html index.htm

    # Override PHP settings that cannot be changed at runtime. See
    # sites/default/default.settings.php and
    # drupal_environment_initialize() in includes/bootstrap.inc for
    # settings that can be changed at runtime.

    # PHP 5, Apache 1 and 2.
    <IfModule mod_php5.c>
        php_flag magic_quotes_gpc                 off
        php_flag magic_quotes_sybase              off
        php_flag register_globals                 off
        php_flag session.auto_start               off
        php_value mbstring.http_input             pass
        php_value mbstring.http_output            pass
        php_flag mbstring.encoding_translation    off
    </IfModule>

    # Requires mod_expires to be enabled.
    #
    <IfModule mod_expires.c>
        # Enable expirations.
        #
        ExpiresActive On

        # Cache all files for 2 weeks after access (A).
        ExpiresDefault A1209600

        <FilesMatch .php$>
            ExpiresActive Off
        </FilesMatch>

    </IfModule>

    <IfModule mod_rewrite.c>
        RewriteEngine on

        # Reject everything that is not pre-approved.
        #
        RewriteCond %{ENV:REDIRECT_STATUS} ^$
        RewriteCond %{REQUEST_FILENAME} -f
        RewriteCond %{REQUEST_URI} !^(((/?).*)*).(css|eot|gif|css.gz|js.gz|ico|jpeg|jpg|js|map|pdf|png|svg|ttf|woff)$
        RewriteCond %{REQUEST_URI} !^/(index|xmlrpc).php
        RewriteCond %{REQUEST_URI} !^/$
        RewriteRule ^ - [F,L]

        # Pass all requests not referring directly to files in the filesystem to
        # index.php. Clean URLs are handled in drupal_environment_initialize().
        RewriteCond %{REQUEST_FILENAME} !-f
        RewriteCond %{REQUEST_FILENAME} !-d
        RewriteCond %{REQUEST_URI} !=/favicon.ico
        RewriteRule ^ /index.php [L]

        # Rules to correctly serve gzip compressed CSS and JS files.
        # Requires both mod_rewrite and mod_headers to be enabled.
        <IfModule mod_headers.c>
            # Serve gzip compressed CSS files if they exist and the client accepts gzip.
            RewriteCond %{HTTP:Accept-encoding} gzip
            RewriteCond %{REQUEST_FILENAME}.gz -s
            RewriteRule ^(.*).css $1.css.gz [QSA]

            # Serve gzip compressed JS files if they exist and the client accepts gzip.
            RewriteCond %{HTTP:Accept-encoding} gzip
            RewriteCond %{REQUEST_FILENAME}.gz -s
            RewriteRule ^(.*).js $1.js.gz [QSA]

            # Serve correct content types, and prevent mod_deflate double gzip.
            RewriteRule .css.gz$ - [T=text/css,E=no-gzip:1]
            RewriteRule .js.gz$ - [T=text/javascript,E=no-gzip:1]

            <FilesMatch "(.js.gz|.css.gz)$">
                # Serve correct encoding type.
                Header set Content-Encoding gzip
                # Force proxies to cache gzipped & non-gzipped css/js files separately.
                Header append Vary Accept-Encoding
            </FilesMatch>
        </IfModule>
    </IfModule>
</Directory>