<IfModule mod_rewrite.c>
RewriteEngine On

# Installation directory
RewriteBase /gis

# Protect application and system files from being viewed
RewriteRule ^(application|modules|system|tests) - [F,L]

# Prevent schedulers from being accessed remotely
RewriteCond %{REMOTE_ADDR} !^127.0.0.1$
RewriteRule ^.*/scheduler/.*$ - [F,L]

# Allow any files or directories that exist to be displayed directly
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d

# Rewrite all other URLs to index.php/URL
RewriteRule .* index.php/$0 [PT,L]
</IfModule>


Salve a tutti qualcuno mi potrebbe spiegare cortesemente a grandi linee questo .htaccess???