Ennen kuin mokaan jotain, kun kirjaudun sisään käyttämällä $ mysql -u root -p
, ja näytä tietokannat:
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| game_data |
| test |
+--------------------+
Sitten yritin luoda uuden käyttäjän ja huomasin, että jotain on vialla PRIVILEGES.
Joten poistin uudet käyttäjät, ja taisin poistaa 'root' ja 'Admin' vahingossa.
Sitten yritän luoda 'root' uudelleen, mutta saan Access denied -virheen, kun annan kaikki oikeudet.
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)
Jos kirjaudun MySQL:ään uudelleen käyttäen $ mysql -u root -p
, ja näytän tietokannat,
+--------------------+
| Database |
+--------------------+
| information_schema |
+--------------------+
Kaikki muut tietokannat ovat poissa.
Miten korjaan MySQL:n nyt?
En löydä tietokantaa 'mysql', en voi luoda tietokantaa, luoda käyttäjää, kaikki mitä yritän tehdä saa virheilmoituksen.
VIRHE 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES).
Pitäisikö minun asentaa MySQL uudelleen MacPortsin avulla? Jos asennan uudelleen, menetän tietokannan game_data
, eikö niin?
Seuraa alla olevia ohjeita.
Käynnistä MySQL-palvelimen instanssi tai daemon --skip-grant-tables
-valinnalla (suojausasetus).
$ mysqld --skip-grant-tables
Suorita nämä lausekkeet.
$ mysql -u root mysql
$mysql> UPDATE user SET Password=PASSWORD('my_password') where USER='root';
$mysql> FLUSH PRIVILEGES;
Jos kohtaat tuntemattoman kentän Password virhe edellä käyttää:
update user set authentication_string=password('my_password') where user='root';
Käynnistä lopuksi instanssi/daemon uudelleen ilman vaihtoehtoa --skip-grant-tables
.
$ /etc/init.d/mysql restart.
Sinun pitäisi nyt pystyä muodostamaan yhteys uudella salasanallasi.
$ mysql -u root -p
Anna salasana: 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)
Saatat nähdä jotain tällaista;
[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
MySQL-palvelimen käyttöönoton suojaaminen.
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:
Jos näet sen sanovan
... 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)
Katso [tämän videon][1] viimeiset 10 minuuttia, siinä opetetaan, miten se tehdään.
Kokeile sitä:
mysql --no-defaults --force --user=root --host=localhost --database=mysql
UPDATE user SET Password=PASSWORD('NEWPASSWORD') where USER='root';
FLUSH PRIVILEGES;