In the <VirtualHost> section only:
<IfModule mod_rewrite.c> #redirect upper case RewriteEngine on #define "lowercase" function RewriteMap lowercase int:tolower #do not follow existing files or folder RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} !-f RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} !-d #check if url contain uppercase RewriteCond %{REQUEST_URI} [A-Z] #redirect RewriteRule ^/(.*)$ /${lowercase:$1} [R=301,L] </IfModule>