如何添加用户
先登录 mysql 然后
show databases;
use mysql;
show tables;
select user,authentication_string,host from user;
可以看到默认都是localhost
![](https://img.haomeiwen.com/i12375681/9a55e6f3c349a19f.png)
update user set host = '%' where user = 'root';
![](https://img.haomeiwen.com/i12375681/7b16941dedf9960d.png)
此时root的host是所有都可以了
然后刷新修改,FLUSH PRIVILEGES;
这步一定要做,否则无法生效。
配置默认编码
修改/etc/my.cnf配置文件,在[mysqld]下添加编码配置,如下所示:
[mysqld]
character_set_server=utf8
init_connect='SET NAMES utf8'
![](https://img.haomeiwen.com/i12375681/2a931eb783c957d8.png)
编辑保存完 重启mysql服务
systemctl restart mysqld
然后在 mysql 中查看编码是否修改成功
show variables like '%character%';
![](https://img.haomeiwen.com/i12375681/6bc8a24e7fc8efad.png)
查看默认端口
show global variables like 'port';
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