由于MySQL已经有闭源的趋势，所以大部分系统已经不建议使用MySQL，Mariadb是MySQL之父创建的一个MySQL分支项目，使用起来几乎一模一样。
1.安装MariaDB
# yum install MariaDB-server MariaDB-client
2.运行数据库
# systemctl start mariadb
3.进入数据库并创建一个production数据库
# mysql
# MariaDB [(none)]> create database production;
# MariaDB [(none)]> use production;
# MariaDB [(none)]> flush privileges;
4.为production数据库创建一个远程登陆的用户
# MariaDB [(none)]> create user 'test1'@'%' identified by 'test1';
# MariaDB [(none)]> grant all privileges on production.* to test1 identified by 'test1';
# MariaDB [(none)]> flush privileges;
5.使用test1用户连接数据库
# mysql -u test1 -p
Enter password: test1
6.登陆成功！
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 214
Server version: 5.5.52-MariaDB MariaDB Server
Copyright (c) 2000, 2016, Oracle, MariaDB Corporation Ab and others.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
MariaDB [(none)]>
