linux系统下mysql跳过密码验证登录

修改MySQL的登录设置：

vi /etc/my.cnf

在[mysqld]的段中加上一句：skip-grant-tables

例如：

[mysqld]

datadir=/var/lib/mysql

socket=/var/lib/mysql/mysql.sock

skip-name-resolve

skip-grant-tables

保存并且退出vi。

3．重新启动mysqld

/etc/init.d/mysqld restart

Stopping MySQL: [ OK ]

Starting MySQL: [ OK ]

4．登录并修改MySQL的root密码

/usr/bin/mysql

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 3 to server version: 3.23.56

Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the buffer.

mysql> USE mysql ;

Reading table information for completion of table and column names

You can turn off this feature to get a quicker startup with -A

Database changed

mysql> UPDATE user SET Password = password ( ‘new-password’ ) WHERE User = ‘root’ ;

Query OK, 0 rows affected (0.00 sec)

Rows matched: 2 Changed: 0 Warnings: 0

mysql> flush privileges ;

Query OK, 0 rows affected (0.01 sec)

mysql> quit

Bye

5．将MySQL的登录设置修改回来

vi /etc/my.cnf

将刚才在[mysqld]的段中加上的skip-grant-tables删除

保存并且退出vi。

6．重新启动mysqld

/etc/init.d/mysqld restart

Stopping MySQL: [ OK ]

Starting MySQL: [ OK ]