Things to do after a mysql install

mysql_post_install.sql

USE mysql;

UPDATE user SET Password = PASSWORD('your-root-password')
WHERE User = 'root';

FLUSH PRIVILEGES;

# remove anonymous user
DELETE FROM user
WHERE User = '';

# drop unsecured test database
DROP DATABASE IF EXISTS test;

# create a master user
CREATE USER 'your-master-user'@'localhost' IDENTIFIED BY 'your-master-user-password';
GRANT ALL PRIVILEGES ON *.* TO 'your-master-user'@'localhost' WITH GRANT OPTION;