1. First verify that the server is in a secure state, that is, no one can connect to the MySQL database arbitrarily.
Because the MySQL database is completely password-protected during the reset of the root password of MySQL
Status, other users can also log in and modify MySQL information arbitrarily. MySQL can be used to
and stop Apache and all user processes to implement the server's quasi-security
State. The safest state is to operate on the console of the server and unplug the network cable.
2. To modify the login settings for MySQL:
# VI/ETC/MY.CNF
Add a sentence to the paragraph in [mysqld]: Skip-grant-tables
For example:
[Mysqld]
Datadir=/var/lib/mysql
Socket=/var/lib/mysql/mysql.sock
Skip-grant-tables
Save and Exit VI.
3. Restart Mysqld
#/etc/init.d/mysqld Restart
stopping MySQL: [OK]
Starting MySQL: [OK]
4. Log in and modify the root password of MySQL
#/usr/bin/mysql
or Direct # 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> with MySQL;
Reading table information for completion of table A nd column names
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 row S affected (0.01 sec)
mysql> quit
bye
5. Change the login settings of MySQL back to
# vi/etc/my.cnf
Remove from the skip-grant-tables that you just added in the [mysqld] section;
Save and Exit VI.
6. Restart mysqld
#/etc/init.d/mysqld restart
stopping mysql: [OK]
Starting MySQL: [OK]
The root password for MySQL under Linux forgot the workaround