I have the following repeated errors in my error.log and I don't know what it means or what I should/can do about it:
Access denied for user 'root'@'[some IP]' (using password: YES)
There are many different IPs showing in the [some IP] field.
I've been reading some security posts that recommend changing the root username to something else, is this something I should do here?
I am using MySQL 5.5.22
I believe these are attempts to gain access to my database from hackers. I want to know what I can do to prevent the attempts. Most of the IPs are coming from China.