1、安装MariaDB

安装命令

yum -y install mariadb mariadb-server

安装完成MariaDB，首先启动MariaDB

systemctl start mariadb

设置开机启动

systemctl enable mariadb

接下来进行MariaDB的相关简单配置

mysql_secure_installation

首先是设置密码，会提示先输入密码

Enter current password for root (enter for none):<–初次运行直接回车

设置密码

Set root password? [Y/n] <– 是否设置root用户密码，输入y并回车或直接回车
New password: <– 设置root用户的密码
Re-enter new password: <– 再输入一次你设置的密码

其他配置

Remove anonymous users? [Y/n] <– 是否删除匿名用户，回车

Disallow root login remotely? [Y/n] <–是否禁止root远程登录,回车,

Remove test database and access to it? [Y/n] <– 是否删除test数据库，回车

Reload privilege tables now? [Y/n] <– 是否重新加载权限表，回车

初始化MariaDB完成，接下来测试登录

mysql -uroot -ppassword

完成。

2、配置MariaDB的字符集

文件/etc/my.cnf

vi /etc/my.cnf

在[mysqld]标签下添加

init_connect='SET collation_connection = utf8_unicode_ci' init_connect='SET NAMES utf8' character-set-server=utf8 
collation-server=utf8_unicode_ci 
skip-character-set-client-handshake

文件/etc/my.cnf.d/client.cnf

vi /etc/my.cnf.d/client.cnf

在[client]中添加

default-character-set=utf8

文件/etc/my.cnf.d/mysql-clients.cnf

vi /etc/my.cnf.d/mysql-clients.cnf

在[mysql]中添加

default-character-set=utf8

 全部配置完成，重启mariadb

systemctl restart mariadb

之后进入MariaDB查看字符集

mysql> show variables like "%character%";show variables like "%collation%";

显示为

+--------------------------+----------------------------+
| Variable_name            | Value                      |
+--------------------------+----------------------------+
| character_set_client    | utf8                      |
| character_set_connection | utf8                      |
| character_set_database  | utf8                      |
| character_set_filesystem | binary                    |
| character_set_results    | utf8                      |
| character_set_server    | utf8                      |
| character_set_system    | utf8                      |
| character_sets_dir      | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+
8 rows in set (0.00 sec)

+----------------------+-----------------+
| Variable_name        | Value          |
+----------------------+-----------------+
| collation_connection | utf8_unicode_ci |
| collation_database  | utf8_unicode_ci |
| collation_server    | utf8_unicode_ci |
+----------------------+-----------------+
3 rows in set (0.00 sec)

字符集配置完成。

3、添加用户，设置权限

创建用户命令

mysql>create user username@localhost identified by 'password'; 

直接创建用户并授权的命令

mysql>grant all on *.* to username@localhost indentified by 'password';

授予外网登陆权限 

mysql>grant all privileges on *.* to username@'%' identified by 'password';

授予权限并且可以授权

mysql>grant all privileges on *.* to username@'hostname' identified by 'password' with grant option;