mysql hvordan man retter Access denied for user 'root'@'localhost'

Før jeg ødelægger noget, når jeg logger ind ved hjælp af $ mysql -u root -p, og viser databaser:

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

Så prøvede jeg at oprette en ny bruger og bemærker, at der er noget galt med PRIVILEGES.

Så jeg slettede de nye brugere, og jeg tror, at jeg fjernede 'root' og 'Admin' ved et uheld.

Så prøver jeg at oprette 'root' igen, men får Access denied error når jeg laver 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)

Hvis jeg logger ind på MySQL igen ved hjælp af $ mysql -u root -p, og viser databaser,

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

Alle de andre databaser er væk.

Hvordan retter jeg MySQL nu?

Jeg kan ikke finde databasen 'mysql', kan ikke oprette database, oprette bruger, alt hvad jeg forsøger at gøre får en fejl.

ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES).

Skal jeg geninstallere MySQL ved hjælp af MacPorts? Hvis jeg geninstallerer, vil jeg miste databasen game_data, ikke sandt?

User that is not a user
Redigeret spørgsmål 2017ør august 2017 в 3:58
Computere
mysql login privileges user-accounts
2013ør juni 2013 в 7:32
63 visninger
Løsning

Følg nedenstående trin.

  1. Start MySQL-serverinstansen eller -dæmonen med indstillingen --skip-grant-tables (sikkerhedsindstilling).

     $ mysqld --skip-grant-tables

  2. Udfør disse instruktioner.

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

Hvis du står over for ovenstående ukendte felt Password fejl, så brug:

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

  1. Endelig genstart instansen/daemon uden indstillingen --skip-grant-tables.

     $ /etc/init.d/mysql restart

Du burde nu kunne oprette forbindelse med din nye adgangskode.

$ mysql -u root -p

Indtast password: my_password

Fix til MySQL "Unable to lock ibdata1" fejl

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
Redigeret svar 2016ør januar 2016 в 8:16
Kommentarer (8)
 
grep 'temporary password' /var/log/mysqld.log
Sort date (newest date)

Du kan se noget som dette;

[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

Sikring af MySQL-serverimplementeringen.

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:

Hvis du ser, at der står

... 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)

Se de sidste 10 minutter af [denne video][1], den lærer dig, hvordan du gør det.

Gottlieb Notschnabel
Redigeret svar 2017ør februar 2017 в 1:01
Kommentarer (3)

Prøv det:

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
Redigeret svar 2014ør februar 2014 в 5:16
Kommentarer (5)