Perte du mot de passe Root de MySql

Loss of the MySql Root password can be solved, thanks to small and very simple manipulations. I know what I’m talking about, I forgot my password myself.

You must connect as root on your server.

 

1 – Connect to the SSH server as root

#login:toto
#password:toto
toto@osn:#

Go to root with the command :

toto@osn:#su -

First of all, you must stop the Mysql server, with the following command.

root@osn:#service mysql stop

Check that MySql services are stopped. Enter the following line :

#ps aux|grep mysqld

You can have that :

mysql     1600  2.0  0.3 1274128 61960 pts/0   Sl   15:51   0:38 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib/mysql/plugin --user=mysql --skip-grant-tables --log-error=/var/log/mysql/error.log --pid-file=/var/run/mysqld/mysqld.pid --socket=/var/run/mysqld/mysqld.sock --port=3306

To stop the service

you’re going to kill him.

root@osn:# killall mysqld

Here is the command to access MySql without root password.

root@osn:#mysqld_safe --skip-grant-tables &

Here’s what it says:

root@osn:# 161115 15:51:31 mysqld_safe Can't log to error log and syslog at the same time.  Remove all --log-error configuration options for --syslog to take effect.
161115 15:51:31 mysqld_safe Logging to '/var/log/mysql/error.log'.
161115 15:51:31 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql

Just below

161115 15:51:31 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql

Put mysql – u root

root@osn:#mysql -u root

MySql opens :

Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 27
Server version: 5.5.53-0+deb8u1 (Debian)

Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>

Go to the mysql database :

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

Pour changer le mot de passe, taper la ligne suivante :

mysql> UPDATE user SET Password=PASSWORD('Votre nouveau mot de passe ici') WHERE user='root';

Query OK, 3 rows affected (0.00 sec)
Rows matched: 3  Changed: 3  Warnings: 0

 

ATTENTION: REPLACE Your new password here with your own

Don’t forget to restore privileges

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

You can leave mysql.

mysql> quit
Bye

Finally, we need to restart the server, so that it can be taken into account.

root@osn:#service mysql start
http://osnetworking.com

 

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