How does one forget the mysql root logon password on a linux server?

This article shares a solution to forgetting the mysql root logon password on a linux server. Haha, this is much more troublesome than windows, but a friend who understands linux may be very quick.

1. First confirm that the server is in a secure state, that is, no one can connect to the MySQL database at will. Because during the resetting of the MySQL root Password, the MySQL database is completely out of the password-free status, other users can also log on and modify the MySQL information at will. You can use MySQL to disable External ports and stop Apache and all user processes to achieve quasi-security of the server. The safest status is to operate on the server Console and unplug the network cable.

2. Modify MySQL Logon Settings:
# Vi/etc/my. cnf
In the [mysqld] section, add skip-grant-tables.
For example:

The Code is as follows:	Copy code
[Mysqld] Datadir =/var/lib/mysql Socket =/var/lib/mysql. sock Skip-grant-tables

Save and exit vi.

3. Restart mysqld

The Code is as follows:	Copy code
#/Etc/init. d/mysqld restart Stopping MySQL: [OK] Starting MySQL: [OK]

4. log on to and modify the MySQL root Password

The Code is as follows:

Copy code

#/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- 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. Modify the MySQL Logon Settings.
# Vi/etc/my. cnf
Delete the skip-grant-tables added to the [mysqld] section.
Save and exit vi.

6. Restart mysqld

The Code is as follows:	Copy code
#/Etc/init. d/mysqld restart Stopping MySQL: [OK] Starting MySQL: [OK]

7. restore the normal working status of the server
Perform the inverse operation in step 1. Restore the server's working status.

II. Method 2 of MySQL password recovery
If you forget the MySQL root Password, You can reset it using the following methods:
1. KILL the MySQL process in the system;

The Code is as follows:	Copy code
Killall-TERM mysqld

2. Run the following command to start MySQL without checking its permissions;

The Code is as follows:	Copy code
Safe_mysqld -- skip-grant-tables &

3. Use the empty password to log on to MySQL as the root user;

The Code is as follows:	Copy code
Mysql-u root

4. Modify the password of the root user;

The Code is as follows:	Copy code
Mysql> update mysql. user set password = PASSWORD ('new password') where User = 'root '; Mysql> flush privileges; Mysql> quit

Restart MySQL to log on with the new password.

Iii. MySQL password restoration method 3
It is possible that your system does not have the safe_mysqld Program (for example, I am using the ubuntu operating system, mysql installed with apt-get). The following method can be restored:
1. Stop mysqld;

The Code is as follows:	Copy code
/Etc/init. d/mysql stop

(You may have other methods. Simply stop running mysqld)
2. Run the following command to start MySQL without checking its permissions;

The Code is as follows:	Copy code
Mysqld -- skip-grant-tables &

3. Use the empty password to log on to MySQL as the root user;

The Code is as follows:	Copy code
Mysql-u root

4. Modify the password of the root user;

The Code is as follows:	Copy code
Mysql> update mysql. user set password = PASSWORD ('newpassword') where User = 'root '; Mysql> flush privileges; Mysql> quit

Restart MySQL

The Code is as follows:	Copy code
/Etc/init. d/mysql restart

You can use the new password newpassword to log on.