This program is a shell script available on Unix systems, and enables you to improve the security of your MariaDB installation in the following ways:
- You can set a password for root accounts.
- You can remove root accounts that are accessible from outside the local host.
- You can remove anonymous-user accounts.
- You can remove the test database, which by default can be accessed by anonymous users.
mysql_secure_installation can be invoked without arguments:
The script will prompt you to determine which actions to perform.
Example: localhost:# mysql_secure_installation
NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!
In order to log into MariaDB to secure it, we'll need the current password for the root user. If you've just installed MariaDB, 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 MariaDB 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 MariaDB installation has an anonymous user, allowing anyone to log into MariaDB 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, MariaDB 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!
All done! If you've completed all of the above steps, your MariaDB installation should now be secure.
Thanks for using MariaDB!
mysql_secure_installation accepts some options:
|defaults-extra-file=file||Additional option file.|
|no-defaults||Don't read any option files.|
Other unrecognized options will be passed on to the server.
Use With Galera Cluster
You should run this script on the first node in the cluster before adding more nodes.
If you want to run this after the cluster is up and running you should find alternative ways.
Anyone can vote for this to be fixed at https://jira.mariadb.org/browse/MDEV-10112.