経緯
MySQLの設定をする際に初期パスワードが自動発行されていることを知らなかったため、記事に残しました。
Conohaのサポートブログ
https://support.conoha.jp/v/setupmysql/
問題点
▼SQLのセキュリティ設定の際に下記のエラーで躓いてしまった
$ mysql_secure_installation
Securing the MySQL server deployment.
Enter password for user root:
Error: Access denied for user 'root'@'localhost' (using password: YES)
解決
どうやらSQLには初期パスワードが事前に発行されているようです。
初期パスワードの格納場所は/var/log/mysqld.log
▼root@localhost:の後ろが初期パスワードです
$ cat /var/log/mysqld.log
~~省略~~
[Note] [MY-010454] [Server] A temporary password is generated for root@localhost: [初期パスワード]
▼mysql_secure_installationで初期パスワードを入力し新しいパスワードを設定
$ mysql_secure_installation
Securing the MySQL server deployment.
Enter password for user root: [初期パスワード]
The existing password for the user account root has expired. Please set a new password.
New password: [新しいパスワード]
Re-enter new password: [もう一度新しいパスワード]
The 'validate_password' component is installed on the server.
The subsequent steps will run with the existing configuration
of the component.
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: [新しいパスワード]
Re-enter new password: [もう一度新しいパスワード]
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!