Ubuntu 23.04 MariaDB 10.11.2をインストールする手順
環境
# lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 23.04 Release: 23.04 Codename: lunar
MariaDBのインストール手順
1.MariaDB をインストールします。
# apt -y install mariadb-server
2. デフォルトの文字コードを確認します
# vi /etc/mysql/mariadb.conf.d/50-server.cnf
# 95行目 絵文字等 4バイト長の文字を扱う場合は [utf8mb4] character-set-server = utf8mb4 collation-server = utf8mb4_general_ci
3.MariaDB を再起動します
# systemctl restart mariadb
4.MariaDB の初期設定を行います
# 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'.
# [Unix_Socket] 認証に切り替えるか否か
# [no] でも root のみ デフォルトで [Unix_Socket] 認証は有効
Switch to unix_socket authentication [Y/n] n
... skipping.
You already have your root account protected, so you can safely answer 'n'.
# MariaDB root パスワードを設定するか否か
# デフォルトで [Unix_Socket] 認証が有効となっているが
# root パスワードを設定すると パスワードでも root ログイン可能となる
# root パスワードを設定しない場合は OS の root ユーザーのみが MariaDB root ユーザーとしてログイン可
Change the root password? [Y/n] n
... skipping.
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.
# 匿名ユーザーは削除する
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.
# root のリモートログインは無効とする
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.
# テストデータベースは削除する
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.
# 特権情報をリロードする
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!
5. MariaDB に root ユーザーで接続する
# mysql Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 37 Server version: 10.11.2-MariaDB-1 Ubuntu 23.04 Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. MariaDB [(none)]>