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.centos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)]>

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