#yum -y install mariadb mariadb-server mariadb-bench

#systemctl start mariadb.service
#systemctl enable mariadb.service

#systemctl status mariadb -l
#less /var/log/messages

#/usr/bin/mysqladmin -u root password 'a123456!'
#/usr/bin/mysqladmin -u root -h localhost.localdomain password 'a123456!'

※PS:可以執行 mysql_secure_installation 指令來設定 root 密碼

#firewall-cmd --permanent --add-service=mysql
#firewall-cmd --reload

#mysql -u root -p