centos7 安装 mariadb
安装完centos7系统,发现已经默认的是mariadb 作为小应用快速敏捷开发mariadb已经够用!
1、安装 mariadb
yum -y install mariadb*
systemctl start mariadb.service
systemctl status mariadb.service
systemctl enable mariadb.service
mysql // 进入mysql
mysql_secure_installation
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
default-storage-engine=MyISAM
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;
简单的用户和权限配置基本就这样了。
其中只授予部分权限把 其中 all privileges或者all改为select,insert,update,delete,create,drop,index,alter,grant,references,reload,shutdown,process,file其中一部分。
设置密码
set password for ‘root’@’localhost’ = password(‘123456’);
刷新用户权限
flush privileges;
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