Secure your MySQL

You can find several nice nice scripts in /usr/bin/ that comes installed with MySQL

mysql utilities

I'll get my hands on all those scripts sometime. But the most significant one out of them is probably mysql_secure_installation

What it does

Its just a bunch of scripts that will make sure your MySQL setup secure and sound. Things like removing remote root login.

Run it just after installing MySQL, thats the best time for this kind of thing.

Hit it

$ sudo /usr/bin/mysql_secure_installation

You need to supply your root password. If you haven't set one up, just press return. In the next it actually asks you to change the root password.

If you already have a root password and don't bother about changing it, just press n and move. The next prompts contains better action.

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MySQL
      SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!


In order to log into MySQL to secure it, we'll need the current
password for the root user.  If you've just installed MySQL, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.

Enter current password for root (enter for none):
OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MySQL
root user without the proper authorisation.

You already have a root password set, so you can safely answer 'n'.

Change the root password? [Y/n] n
 ... skipping.

By default, a MySQL installation has an anonymous user, allowing anyone
to log into MySQL without having to have a user account created for
them.  This is intended only for testing, and to make the installation
go a bit smoother.  You should remove them before moving into a
production environment.

Remove anonymous users? [Y/n] y
 ... Success!

Normally, root should only be allowed to connect from 'localhost'.  This
ensures that someone cannot guess at the root password from the network.

Disallow root login remotely? [Y/n] y
 ... Success!

By default, MySQL comes with a database named 'test' that anyone can
access.  This is also intended only for testing, and should be removed
before moving into a production environment.

Remove test database and access to it? [Y/n] y
 - Dropping test database...
 ... Success!
 - Removing privileges on test database...
 ... Success!

Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.

Reload privilege tables now? [Y/n] y
 ... Success!

Cleaning up...



All done!  If you've completed all of the above steps, your MySQL
installation should now be secure.

Thanks for using MySQL!

Next, it should ask you about removing anonymous users, disabling remote root login, removing test database, reloading privilege tables. Saying y to all of these is undoubtedly a good idea.