I have only acces to the
php.ini file and my good old
Where do I enable the Keep Alive setting?
( Im on a plesk 8.2 )
Which KeepAlive setting? If you are meaning whether the server supports persistent HTTP connections and how long the relevant timeouts are, then this is not something you can control from .htaccess or php.ini - it is something that can only be configured in the core Apache configuration files.
Of course You can!
Place .htaccess file with this content
(upload it using FTP or edit it using a SSH terminal)
An even more dynamic than a htaccess folder-based configuration - is a PHP file based-one (and the headers too...) just add it to your PHP file. (Before you've started to output any content to the page)
From: iCompile - Keep-Alive - Apache And Headers By .htaccess And PHP