【RockyLinux8】MariaDBインストール

RockyLinux8

本記事では、Rocky LinuxにMariaDBをインストールし、基本的な設定を行う手順を説明します。

MariaDB モジュール確認

現在の利用可能な MariaDB モジュール一覧が表示されます。今回は MariaDB 10.5 をインストールするので、その情報を確認しましょう。

# dnf module list mariadb
メタデータの期限切れの最終確認: 1:40:58 前の 2024年01月14日 10時41分52秒 に実施しました。
Rocky Linux 8 - AppStream
Name                   Stream                 Profiles                                 Summary                     
mariadb                10.3 [d]               client, galera, server [d]               MariaDB Module              
mariadb                10.5                   client, galera, server [d]               MariaDB Module              

ヒント: [d]efault, [e]nabled, [x]disabled, [i]nstalled

MariaDBインストール

今回はMariaDB 10.5バージョンをインストールします。

# dnf module install mariadb:10.5

MariaDB起動

続いて MariaDB を起動します。

# systemctl start mariadb         ← MariaDB起動
# systemctl enable mariadb        ← 自動起動を設定

自動起動設定により、システム起動時に MariaDB が自動的に起動されるようになります。

MariaDB ステータス確認

MariaDB が正常に起動していることを確認しましょう。

# systemctl status mariadb
● mariadb.service - MariaDB 10.5 database server
   Loaded: loaded (/usr/lib/systemd/system/mariadb.service; enabled; vendor preset: disabled)
   Active: active (running) since Sun 2024-01-14 12:30:16 JST; 33s ago
     Docs: man:mysqld(8)
           https://mariadb.com/kb/en/library/systemd/
 Main PID: 25104 (mysqld)
   Status: "Taking your SQL requests now..."
    Tasks: 17 (limit: 48932)
   Memory: 77.2M
   CGroup: /system.slice/mariadb.service
           └─25104 /usr/libexec/mysqld --basedir=/usr

MariaDB初期設定

このコマンドを実行すると、以下の初期設定が行われます。

  • root ユーザーのパスワード設定
  • 匿名ユーザーの無効化
  • テストデータベースの削除
  • root ユーザーのリモートログイン制限
# mysql_secure_installation

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
      SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!

In order to log into MariaDB to secure it, we'll need the current
password for the root user. If you've just installed MariaDB, and
haven't set the root password yet, you should just press enter here.

Enter current password for root (enter for none): 
OK, successfully used password, moving on...

Setting the root password or using the unix_socket ensures that nobody
can log into the MariaDB root user without the proper authorisation.

You already have your root account protected, so you can safely answer 'n'.

Change the root password? [Y/n] y
New password: 
Re-enter new password: 
Password updated successfully!
Reloading privilege tables..
 ... Success!


By default, a MariaDB installation has an anonymous user, allowing anyone
to log into MariaDB 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? [Y/n] 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? [Y/n] y
 ... Success!

By default, MariaDB 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? [Y/n] 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? [Y/n] y
 ... Success!

Cleaning up...

All done!  If you've completed all of the above steps, your MariaDB
installation should now be secure.

Thanks for using MariaDB!

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