How to install MySQL (MariaDB) on CentOS 6, 7?

How to install MySQL (MariaDB) on CentOS 6, 7?

This tutorial explains how to install the MySQL (MariaDB) relational database management system on your CentOS 6, 7 servers.

NOTE: MariaDB is a community-developed fork of the popular MySQL database management system.

1. Install MySQL (MariaDB)

1 a. First of all, install MySQL (MariaDB) by running the following command:
sudo yum install mariadb-server mariadb -y


1 b. Then, start the MariaDB service by running the following command:
sudo systemctl start mariadb


1 c. Enable MariaDB to start on system boot by running the following command:
sudo systemctl enable mariadb.service

2. Post installation security upgrade

Use the MySQL security script in order to remove some security threats to the database system by running the following command:
sudo mysql_secure_installation 



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): (Just hit “Enter” on the keyboard, because this is a fresh installation and there is no password)
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!



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