mysql como arreglar Acceso denegado para el usuario 'root'@'localhost'

Antes de meter la pata en algo, cuando me conecto usando $ mysql -u root -p, y muestro las bases de datos:

+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| game_data          |
| test               |
+--------------------+

Luego intenté crear un nuevo usuario y noto que algo está mal con los PRIVILEGIOS.

Así que borré los nuevos usuarios, y supongo que eliminé el 'root' y 'Admin' accidentalmente.

Entonces intento crear 'root' de nuevo, pero me sale el error de acceso denegado al hacer grant all privileges.

mysql> CREATE USER 'root'@'localhost' IDENTIFIED BY 'password';
mysql> grant all privileges on *.* to 'root'@'localhost' identified by 'password' with grant option;
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)

Si vuelvo a entrar en MySQL usando $ mysql -u root -p, y muestro las bases de datos,

+--------------------+
| Database           |
+--------------------+
| information_schema |
+--------------------+

Todas las demás bases de datos han desaparecido.

Cómo puedo arreglar MySQL ahora?

No puedo encontrar la base de datos 'mysql', no puedo crear la base de datos, crear el usuario, cualquier cosa que intento hacer obtiene un error.

ERROR 1045 (28000): Acceso denegado para el usuario 'root'@'localhost' (usando contraseña: YES).

¿Debo reinstalar MySQL usando MacPorts? Si reinstalo, perderé la base de datos game_data, ¿verdad?

User that is not a user
Pregunta editada 3º agosto 2017 в 3:58
Computadoras
mysql login privileges user-accounts
3º junio 2013 в 7:32
14 vistas
Solución

Siga los siguientes pasos.

  1. Inicie la instancia o demonio del servidor MySQL con la opción --skip-grant-tables (configuración de seguridad).

     $ mysqld --skip-grant-tables

  2. Ejecute estas sentencias.

     $ mysql -u root mysql
 $mysql> UPDATE user SET Password=PASSWORD('my_password') where USER='root';
 $mysql> FLUSH PRIVILEGES;

Si te enfrentas al error de la contraseña de campo desconocida por encima de uso:

update user set authentication_string=password('my_password') where user='root';

  1. Finalmente, reinicie la instancia/daemon sin la opción --skip-grant-tables.

     $ /etc/init.d/mysql restart

Ahora debería poder conectarse con su nueva contraseña.

$ mysql -u root -p

Introduzca la contraseña: mi_contraseña.

Corrección del error de MySQL "Unable to lock ibdata1".

sudo mv /usr/local/mysql/data/ibdata1 /usr/local/mysql/data/ibdata1.bak
sudo mv /usr/local/mysql/data/ib_logfile0 /usr/local/mysql/data/ib_logfile0.bak
sudo mv /usr/local/mysql/data/ib_logfile1 /usr/local/mysql/data/ib_logfile1.bak
sudo cp -a /usr/local/mysql/data/ibdata1.bak /usr/local/mysql/data/ibdata1
sudo cp -a /usr/local/mysql/data/ib_logfile0.bak /usr/local/mysql/data/ib_logfile0
sudo cp -a /usr/local/mysql/data/ib_logfile1.bak /usr/local/mysql/data/ib_logfile1
sudo /etc/init.d/mysql restart
Community
Respuesta editada 14º enero 2016 в 8:16
Comentarios (8)
 
grep 'temporary password' /var/log/mysqld.log
Sort date (newest date)

Es posible que veas algo como esto;

[root@SERVER ~]# grep 'temporary password' /var/log/mysqld.log
2016-01-16T18:07:29.688164Z 1 [Note] A temporary password is generated for root@localhost: O,k5.marHfFu
2016-01-22T13:14:17.974391Z 1 [Note] A temporary password is generated for root@localhost: b5nvIu!jh6ql
2016-01-22T15:35:48.496812Z 1 [Note] A temporary password is generated for root@localhost: (B*=T!uWJ7ws
2016-01-22T15:52:21.088610Z 1 [Note] A temporary password is generated for root@localhost: %tJXK7sytMJV
2016-01-22T16:24:41.384205Z 1 [Note] A temporary password is generated for root@localhost: lslQDvgwr3/S
2016-01-22T22:11:24.772275Z 1 [Note] A temporary password is generated for root@localhost: S4u+J,Rce_0t
[root@SERVER ~]# mysql_secure_installation

Asegurando el despliegue del servidor MySQL.

Enter password for user root: 

The existing password for the user account root has expired. Please set a new password.

New password: 

Re-enter new password:

Si ve que dice

... Failed! Error: Your password does not satisfy the current policy requirements
That means your password needs to have a character such as ! . # - etc...
mix characters well, upper case, lower case, ! . , # etc...

New password: 

Re-enter new password: 
The 'validate_password' plugin is installed on the server.
The subsequent steps will run with the existing configuration
of the plugin.
Using existing password for root.

Estimated strength of the password: 100 
Change the password for root ? ((Press y|Y for Yes, any other key for No) : Y

New password: 

Re-enter new password: 

Estimated strength of the password: 100 
Do you wish to continue with the password provided?(Press y|Y for Yes, any other key for No) : Y
By default, a MySQL installation has an anonymous user,
allowing anyone to log into MySQL without having to have
a user account created for them. This is intended only for
testing, and to make the installation go a bit smoother.
You should remove them before moving into a production
environment.

Remove anonymous users? (Press y|Y for Yes, any other key for No) : Y
Success.

Normally, root should only be allowed to connect from
'localhost'. This ensures that someone cannot guess at
the root password from the network.

Disallow root login remotely? (Press y|Y for Yes, any other key for No) : Y
Success.

By default, MySQL comes with a database named 'test' that
anyone can access. This is also intended only for testing,
and should be removed before moving into a production
environment.

Remove test database and access to it? (Press y|Y for Yes, any other key for No) : Y
 - Dropping test database...
Success.

 - Removing privileges on test database...
Success.

Reloading the privilege tables will ensure that all changes
made so far will take effect immediately.

Reload privilege tables now? (Press y|Y for Yes, any other key for No) : Y
Success.

All done! 
[root@SERVER ~]# mysql -u root -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 11
Server version: 5.7.10 MySQL Community Server (GPL)

Mira los últimos 10 minutos de [este vídeo][1], te enseña cómo lo haces.

Gottlieb Notschnabel
Respuesta editada 22º febrero 2017 в 1:01
Comentarios (3)

Pruébalo:

mysql --no-defaults --force --user=root --host=localhost --database=mysql 
UPDATE user SET Password=PASSWORD('NEWPASSWORD') where USER='root';
FLUSH PRIVILEGES;
Canadian Luke REINSTATE MONICA
Respuesta editada 21º febrero 2014 в 5:16
Comentarios (5)