MySql修改root密码、设置IP访问

时间:2021-07-31 11:02:00

先登录:mysql -h 192.168.5.116 -P 3306 -u root -p123456

首次登陆无密码命令:mysql -h 192.168.5.116 -P 3306 -u root

修改密码(推荐使用方法3):

方法1: 用SET PASSWORD命令

  mysql -u root

  mysql> SET PASSWORD FOR 'root'@'localhost' = PASSWORD('newpass');

方法2:用mysqladmin

  mysqladmin -u root password "newpass"

  如果root已经设置过密码,采用如下方法

  mysqladmin -u root password oldpass "newpass"

方法3: 用UPDATE直接编辑user表

  mysql -u root

  mysql> use mysql;

  mysql> UPDATE user SET Password = PASSWORD('newpass') WHERE user = 'root';

  mysql> FLUSH PRIVILEGES;

在丢失root密码的时候,可以这样

  mysqld_safe --skip-grant-tables&

  mysql -u root mysql

  mysql> UPDATE user SET password=PASSWORD("new password") WHERE user='root';

  mysql> FLUSH PRIVILEGES;

设置IP访问

mysql>use mysql;

mysql>select host,user from user where user='root';

mysql>update user set host = '%'  where user ='root' and host='::1';

mysql> SET PASSWORD FOR 'root'@'%' = PASSWORD('newpass');    //设置密码

mysql>flush privileges;

mysql>quit

如果你用的方式