CentOS7yum安装mariadb及配置，centos7yummariadb

CentOS7yum安装mariadb及配置，centos7yummariadb

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。


开放root远程权限
GRANT ALL PRIVILEGES ON *.* TO 'root'@'192.168.148.%' IDENTIFIED BY '12345678' WITH GRANT OPTION;


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。