mysql忘记密码时重置密码

1.修改配置文件

vi /etc/mysql/mysql.conf.d/mysqld.cnf
//在[mysqld]添加跳过登录
skip-grant-tables

2.重启mysql服务并进入mysql客户端

mysql
flush privileges;
ALTER USER 'root'@'localhost' IDENTIFIED BY 'NewPassword';

3.修改配置文件并重启mysql

vi /etc/mysql/mysql.conf.d/mysqld.cnf
//在[mysqld]注释跳过登录
#skip-grant-tables

数据库授权

//创建用户host表示访问主机，不限制访问可以用“%”代替主机
CREATE USER 'username'@'host' IDENTIFIED BY 'password';

// *.* 表示所有库 dbname.table
GRANT ALL PRIVILEGES ON *.* TO 'username'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;

FLUSH   PRIVILEGES;