Fai una prova del tipo

Redirect 301 pagina1 pagina2 e vedi se ti funziona.

ciao Juanin, scusa per il ritardo, ma sono sommerso di lavoro.
Facendo la prova con il redirect 301, mi da: "Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator to inform of the time the error occurred and of anything you might have done that may have caused the error. More information about this error may be available in the server error log."

Sì ma cosa hai scritto?

Incollamelo.

redirect 301 /pag1.html href="nomedominio.com/cartellaInizio/pag2.html

Non puoi mettere href=" nel file htaccess

redirect 301 /index.html http://www.dominio.com/index.html

provato, non fa niente, se invece provo cosi':

RewriteEngine on
RewriteCond %{HTTP_HOST} ^.$
RewriteRule ^(.)$ nomedominio.it [R=301,L]

mi reindirizza tranquillamente su un altro sito

Ok allora il mod_rewrite funziona.

A questo punto il tuo problema non è il mod_rewrite

ok, mi hai dato una bella e una brutta notizia insieme!
Quindi, per esclusione, il problema e' di prestashop.
Hai idea di cosa puo' essere vedendo l'htaccess creato da prestashop? Il problema puo' essere che il file si trovi in una sotto cartella (cartellaInizio), piuttosto che nella root principale? Non so piu' dove mettere mano

Ho notato che se imposto nel pannello di controllo di prestashop, la funzione per la riscrittura degli url, il file htaccess cambia e rispetto a quello che ti ho postato prima diventa cosi':

start Do not remove this comment, Prestashop will keep automatically the code outside this comment when .htaccess will be generated again

.htaccess automaticaly generated by PrestaShop e-commerce open-source solution

+++---prestashop.com - +++---prestashop.com/forums

<IfModule mod_rewrite.c>
RewriteEngine on
RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule . - [E=REWRITEBASE:/cartellaInizio/]
RewriteRule ^api/?(.*)$ %{ENV:REWRITEBASE}webservice/dispatcher.php?url=$1 [QSA,L]

Images

RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^([0-9])(-[_a-zA-Z0-9-])?(-[0-9]+)?/.+.jpg$ %{ENV:REWRITEBASE}img/p/$1/$1$2$3.jpg
RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^([0-9])([0-9])(-[_a-zA-Z0-9-])?(-[0-9]+)?/.+.jpg$ %{ENV:REWRITEBASE}img/p/$1/$2/$1$2$3$4.jpg
RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^([0-9])([0-9])([0-9])(-[_a-zA-Z0-9-])?(-[0-9]+)?/.+.jpg$ %{ENV:REWRITEBASE}img/p/$1/$2/$3/$1$2$3$4$5.jpg
RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^([0-9])([0-9])([0-9])([0-9])(-[_a-zA-Z0-9-])?(-[0-9]+)?/.+.jpg$ %{ENV:REWRITEBASE}img/p/$1/$2/$3/$4/$1$2$3$4$5$6.jpg
RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^([0-9])([0-9])([0-9])([0-9])([0-9])(-[_a-zA-Z0-9-])?(-[0-9]+)?/.+.jpg$ %{ENV:REWRITEBASE}img/p/$1/$2/$3/$4/$5/$1$2$3$4$5$6$7.jpg
RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])(-[_a-zA-Z0-9-])?(-[0-9]+)?/.+.jpg$ %{ENV:REWRITEBASE}img/p/$1/$2/$3/$4/$5/$6/$1$2$3$4$5$6$7$8.jpg
RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])(-[a-zA-Z0-9-])?(-[0-9]+)?/.+.jpg$ %{ENV:REWRITEBASE}img/p/$1/$2/$3/$4/$5/$6/$7/$1$2$3$4$5$6$7$8$9.jpg
RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])(-[_a-zA-Z0-9-])?(-[0-9]+)?/.+.jpg$ %{ENV:REWRITEBASE}img/p/$1/$2/$3/$4/$5/$6/$7/$8/$1$2$3$4$5$6$7$8$9$10.jpg
RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^c/([0-9]+)(-[._a-zA-Z0-9-])(-[0-9]+)?/.+.jpg$ %{ENV:REWRITEBASE}img/c/$1$2$3.jpg
RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^c/([a-zA-Z-]+)(-[0-9]+)?/.+.jpg$ %{ENV:REWRITEBASE}img/c/$1$2.jpg

AlphaImageLoader for IE and fancybox

RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^images_ie/?([^/]+).(jpe?g|png|gif)$ js/jquery/plugins/fancybox/images/$1.$2
RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule . - [E=REWRITEBASE:/magasin/]
RewriteRule ^api/?(.*)$ %{ENV:REWRITEBASE}webservice/dispatcher.php?url=$1 [QSA,L]

Images

RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^([0-9])(-[_a-zA-Z0-9-])?(-[0-9]+)?/.+.jpg$ %{ENV:REWRITEBASE}img/p/$1/$1$2$3.jpg
RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^([0-9])([0-9])(-[_a-zA-Z0-9-])?(-[0-9]+)?/.+.jpg$ %{ENV:REWRITEBASE}img/p/$1/$2/$1$2$3$4.jpg
RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^([0-9])([0-9])([0-9])(-[_a-zA-Z0-9-])?(-[0-9]+)?/.+.jpg$ %{ENV:REWRITEBASE}img/p/$1/$2/$3/$1$2$3$4$5.jpg
RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^([0-9])([0-9])([0-9])([0-9])(-[_a-zA-Z0-9-])?(-[0-9]+)?/.+.jpg$ %{ENV:REWRITEBASE}img/p/$1/$2/$3/$4/$1$2$3$4$5$6.jpg
RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^([0-9])([0-9])([0-9])([0-9])([0-9])(-[_a-zA-Z0-9-])?(-[0-9]+)?/.+.jpg$ %{ENV:REWRITEBASE}img/p/$1/$2/$3/$4/$5/$1$2$3$4$5$6$7.jpg
RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])(-[_a-zA-Z0-9-])?(-[0-9]+)?/.+.jpg$ %{ENV:REWRITEBASE}img/p/$1/$2/$3/$4/$5/$6/$1$2$3$4$5$6$7$8.jpg
RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])(-[a-zA-Z0-9-])?(-[0-9]+)?/.+.jpg$ %{ENV:REWRITEBASE}img/p/$1/$2/$3/$4/$5/$6/$7/$1$2$3$4$5$6$7$8$9.jpg
RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])(-[_a-zA-Z0-9-])?(-[0-9]+)?/.+.jpg$ %{ENV:REWRITEBASE}img/p/$1/$2/$3/$4/$5/$6/$7/$8/$1$2$3$4$5$6$7$8$9$10.jpg
RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^c/([0-9]+)(-[._a-zA-Z0-9-])(-[0-9]+)?/.+.jpg$ %{ENV:REWRITEBASE}img/c/$1$2$3.jpg
RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^c/([a-zA-Z-]+)(-[0-9]+)?/.+.jpg$ %{ENV:REWRITEBASE}img/c/$1$2.jpg

AlphaImageLoader for IE and fancybox

RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^images_ie/?([^/]+).(jpe?g|png|gif)$ js/jquery/plugins/fancybox/images/$1.$2

Dispatcher

RewriteCond %{REQUEST_FILENAME} -s
RewriteCond %{REQUEST_FILENAME} -l
RewriteCond %{REQUEST_FILENAME} -d
RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^.$ - [NC,L]
RewriteCond %{HTTP_HOST} ^---dominio.com$
RewriteRule ^.$ %{ENV:REWRITEBASE}index.php [NC,L]
</IfModule>

#If rewrite mod isn't enabled
ErrorDocument 404 /dominio/index.php?controller=404

end Do not remove this comment, Prestashop will keep automatically the code outside this comment when .htaccess will be generated again

Purtroppo non conosco prestashop mi dispiace.

ok, grazie comunque per il tempo che mi hai dedicato. Cerchero' di di scrivere l'eventuale soluzione nel caso dovesse servire a qualcun altro