MySQL忘記密碼

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1，修改MySQL的登入設定： 

# vim /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-grant-tables 

儲存並且退出

2，重新啟動mysqld 

# service mysqld restart Stopping MySQL: [ OK ] Starting MySQL: [ OK ]

3，登入並修改MySQL的root密碼 

# 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 ; 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

4，將MySQL的登入設定修改回來 

# vim /etc/my.cnf 

將剛才在[mysqld]的段中加上的skip-grant-tables刪除 
儲存並且退出

5，重新啟動mysqld 

# service mysqld restart Stopping MySQL: [ OK ] Starting MySQL: [ OK ]

MySQL忘記密碼