Преди да съм объркал нещо, когато вляза с помощта на $ mysql -u root -p
и покажа базите данни:
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| game_data |
| test |
+--------------------+
След това се опитах да създам нов потребител и забелязах, че нещо не е наред с PRIVILEGES.
Затова изтрих новите потребители и предполагам, че случайно съм премахнал 'root' и 'Admin'.
След това се опитвам да създам 'root' отново, но получавам грешка Access denied (отказ на достъп), когато правя grant all privileges (предоставяне на всички привилегии).
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)
Ако вляза в MySQL отново с помощта на $ mysql -u root -p
и покажа базите данни,
+--------------------+
| Database |
+--------------------+
| information_schema |
+--------------------+
Всички останали бази данни са изчезнали.
Как да поправя MySQL сега?
Не мога да намеря базата данни 'mysql', не мога да създам база данни, да създам потребител, всичко, което се опитвам да направя, дава грешка.
ERROR 1045 (28000): Достъпът е отказан за потребител 'root'@'localhost' (използващ парола: YES).
Трябва ли да преинсталирам MySQL, като използвам MacPorts? Ако преинсталирам, ще загубя базата данни game_data
, нали?
Следвайте стъпките по-долу.
Стартирайте инстанцията или демона на MySQL сървъра с опцията --skip-grant-tables
(настройка за сигурност).
$ mysqld --skip-grant-tables
Изпълнете тези команди.
$ mysql -u root mysql
$mysql> UPDATE user SET Password=PASSWORD('my_password') where USER='root';
$mysql> FLUSH PRIVILEGES;
Ако се сблъскате с грешката за неизвестно поле Password по-горе, използвайте:
update user set authentication_string=password('my_password') where user='root';
Накрая рестартирайте инстанцията/демона без опцията --skip-grant-tables
.
$ /etc/init.d/mysql restart
Сега трябва да можете да се свържете с новата си парола.
$ mysql -u root -p
Въведете парола: my_password
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
grep 'temporary password' /var/log/mysqld.log
Sort date (newest date)
Може да видите нещо подобно;
[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
Обезопасяване на внедряването на сървъра 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:
Ако видите, че се казва
... 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)
Гледайте последните 10 минути на [това видео][1], там ще научите как да го направите.
Опитайте:
mysql --no-defaults --force --user=root --host=localhost --database=mysql
UPDATE user SET Password=PASSWORD('NEWPASSWORD') where USER='root';
FLUSH PRIVILEGES;