JurgenFeuchter on "Running php5.4 and MySQL 5.1 error?"

Here is the LOG.

[01-Jul-2015 16:47:56 UTC] PHP Warning:  mysql_connect(): mysqlnd cannot connect to MySQL 4.1+ using the old insecure authentication. Please use an administration tool to reset your password with the command SET PASSWORD = PASSWORD('your_existing_password'). This will store a new, and more secure, hash value in mysql.user. If this user is used in other scripts executed by PHP 5.2 or earlier you might need to remove the old-passwords flag from your my.cnf file in /home/hfeuchte/public_html/wp-includes/wp-db.php on line 1142
[01-Jul-2015 16:48:00 UTC] PHP Warning:  mysql_connect(): mysqlnd cannot connect to MySQL 4.1+ using the old insecure authentication. Please use an administration tool to reset your password with the command SET PASSWORD = PASSWORD('your_existing_password'). This will store a new, and more secure, hash value in mysql.user. If this user is used in other scripts executed by PHP 5.2 or earlier you might need to remove the old-passwords flag from your my.cnf file in /home/hfeuchte/public_html/wp-includes/wp-db.php on line 1142

Where would I need to put the password for it to rehash? Ive already tried changing the password several time on the Mysql and then on my /wp-config