I installed Piwik : it works like a charm :).
I’d like just to resolve this :
I restricted access to various administration consoles by IP/Login with some Apache2 conf files like this one :
order deny,allow deny from all allow from XXX.XXX.XXX.XXX AuthUserFile /etc/piwik/htpasswd.setup
The problem :
As soon as website pages are loaded, the piwik code try to send data to piwik instance an so : authentication is asked for.
So, i can’t imagine how to restrict access to Piwik admin console while letting tracking code send data…