Installeer MariaDB en start deze nu en in de toekomst:

yum install mariadb-server mariadb
systemctl enable mariadb.service
systemctl start mariadb.service

verwijder de defaults en set een mysql administrator password:

mysql_secure_installation

Enter current password for root (enter for none):
Set root password? [Y/n] Y
 Lae1tip0rus
Remove anonymous users? [Y/n] Y
Disallow root login remotely? [Y/n] Y
Remove test database and access to it? [Y/n] Y
Reload privilege tables now? [Y/n] Y