ubuntu18 修改mysql數據庫密碼

sudo vim /etc/mysql/my.cnf

添加如下內容：

[mysqld]
skip-grant-tables=1

重啟mysql服務

sudo service mysql restart

登錄mysql

mysql

切換到mysql數據庫,並修改root用戶密碼

use mysql;
update user set plugin='mysql_native_password' where user='root';
update user set authentication_string=password('123456') where user='root';
flush privileges;
exit;

修改配置並重啟mysql服務

sudo sudo vim /etc/mysql/my.cnf把skip-grant-tables刪除掉
sudo service mysql restart