Hi all and thanks for your help. I've a webapp deployed on tomcat at localhost:8080/app and is accessible throught a www.domain.com. Hi do that with following configuration in apache
RewriteEngine on
ProxyRequests off
ProxyPreserveHost on
RewriteCond %{REQUEST_URI} !^/backoffice
RewriteRule ^/(.*)$ ajp://localhost:8009/app/$1 [P,L]
Now the authentication process not work because JSESSIONID cookie domani is "/app/" and not "/". There is a way to solve that problem. Thanks ;)