ubuntu18.04安装mysql以及重置密码创建新用户

时间:2024-04-15 14:37:45

1、安装mysql
sudo apt-get install mysql-server
sudo apt-get install mysql-client
sudo apt-get install libmysqlclient-dev
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通过sudo netstat -tap | grep mysql检查之后,如果看到有mysql 的socket处于 listen 状态则表示安装成功

登录权限问题
Ubuntu18.04 安装mysql之后,发现普通用户和远程都没有权限连接。

ERROR 1045: Access denied for user: 'root@localhost' (Using
password: YES)
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修改了密码也不对。然后sudo mysql -u root即可登录。这显然不是我们想要的。

2、删除用户创建新用户
删除root,重新创建用户。

首先,登录

sudo mysql -u root
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然后查看当前用户

SELECT User,Host FROM mysql.user;
+------------------+-----------+
| User | Host |
+------------------+-----------+
| admin | localhost |
| debian-sys-maint | localhost |
| magento_user | localhost |
| mysql.sys | localhost |
| root | localhost |
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删除root账号

mysql> DROP USER 'root'@'localhost';
Query OK, 0 rows affected (0,00 sec)
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重新创建root:

mysql> CREATE USER 'root'@'%' IDENTIFIED BY '123456';
Query OK, 0 rows affected (0,00 sec)
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授权

mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' WITH GRANT OPTION;
Query OK, 0 rows affected (0,00 sec)

mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0,01 sec)
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3、关于重置密码
host为%时允许远程登录

SET PASSWORD FOR root@'localhost' = PASSWORD('password');
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or

UPDATE mysql.user SET Password=PASSWORD('newpwd') WHERE User='root';
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or

USE mysql
UPDATE user SET Password = PASSWORD('newpwd')
WHERE Host = 'localhost' AND User = 'root';
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允许任何地方登录

USE mysql
UPDATE user SET Password = PASSWORD('newpwd')
WHERE Host = '%' AND User = 'root';
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版权声明:本文为****博主「爱学习的狮王」的原创文章,遵循 CC 4.0 BY-SA 版权协议,转载请附上原文出处链接及本声明。
原文链接:https://blog.****.net/study_in/article/details/86721468