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Installation and basic configuration of MariaDB on CentOS/RHEL 7.

In this post, I will show you how to install MariaDB on a CentOS/RHEL 7 machine. This task is really easy to complete and could be done in couple minutes.

Installing the Software

[[email protected] ~]# yum install mariadb-server

Enabling and starting the service

To enable the service and making it persistent across reboots:

[[email protected] ~]# systemctl enable mariadb.service

To start the service:

[[email protected] ~]# systemctl start mariadb.service

Basic MariaDB configuration

Now we are going to do some basic configuration. To do this we will execute the mysql_secure_installation script. To do this run:

[[email protected] ~]# mysql_secure_installation

Here are some steps to follow:

[[email protected] ~]# mysql_secure_installation
/bin/mysql_secure_installation: line 379: find_mysql_client: command not found

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.

Set root password? [Y/n] Y  
New password:  
Re-enter new password:  
Password updated successfully!  
Reloading privilege tables..  
... Success!

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!

Cleaning up...

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

Thanks for using MariaDB!  

After this we are going to test that we could connect to the MariaDB server:

[[email protected] ~]# mysql -u root -p

We are done, we have installed and configured MariaDB on CentOS/RHEL.




Julio is a Principal Cloud Architect at Red Hat working on Linux, Virtualization, Cloud (OpenStack), and Containers.Julio was born in Cuba but now calls home Austin, TX.