MySQL Expired Passwords
On some MySQL server configurations you might get errors similar to the ones below:
Your password has expired. To log in you must change it using a client that supports expired passwords
It means that current MySQL config is set to block passwords that were set a long time ago.
You can run some SQL queries that can result in additional errors and queries needed, OR you can disable password expiration with this line in /etc/my.cnf
Needs mysql restart.