mdp phpmyadmin

bonjour,
je voudrais savoir ou se trouve le fichier de configuration pour l'acces
a phpmyadmin.
J'ai bien /var/www/localhost/htdocs/phpmyadmin/config.inc.php avec dedans :
$cfg['Servers'][$i]['host'] = 'localhost'; // MySQL hostname
or IP address
$cfg['Servers'][$i]['port'] = ''; // MySQL port -
leave blank for default port
$cfg['Servers'][$i]['socket'] = ''; // Path to the
socket - leave blank for default socket
$cfg['Servers'][$i]['connect_type'] = 'tcp'; // How to connect
to MySQL server ('tcp' or 'socket')
$cfg['Servers'][$i]['extension'] = 'mysql'; // The php MySQL
extension to use ('mysql' or 'mysqli')
$cfg['Servers'][$i]['compress'] = FALSE; // Use compressed
protocol for the MySQL connection
// (requires PHP
>= 4.3.0)
$cfg['Servers'][$i]['controluser'] = 'pma'; // MySQL control
user settings
// (this user must
have read-only
$cfg['Servers'][$i]['controlpass'] = '669228915400223673';
// access to the
"mysql/user"
// and "mysql/db"
tables).
// The controluser
is also
// used for all
relational
// features (pmadb)
$cfg['Servers'][$i]['auth_type'] = 'http'; // Authentication
method (config, http or cookie based)?
$cfg['Servers'][$i]['user'] = 'root'; // MySQL user
$cfg['Servers'][$i]['password'] = ''; // MySQL password
(only needed
// with 'config'
auth_type)

Mais en utilisant root en login et rien en password ca marche pas.

J'utilise phpMyAdmin 2.6.4-pl2, PHP 4.4.0-gentoo-r1, mysql Ver 12.22
Distrib 4.0.25, for pc-linux-gnu (i686).

Merci.