I am having problems with suPHP in ISPConfig 3.0.16, OS Debian Lenny. When i configure a website to use suPHP i get a 500 Internal Server Error, in the suPHP log i get: [warn] Script "/home/webs/clients/client1/web1/web/index.php" resolving to "/home/webs/clients/client1/web1/web/index.php" not within configured docroot I have searched and havent found any solution. Websites with fast-cgi and mod_php works fine. Thanks.
Have you checked the settings in suphp.conf? In your case the docroot setting should probably look like docroot=/home/webs/clients