Debian 11にMariaDBをインストールする方法
環境
Debian 11.2
MariaDB 10.5
操作方法
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 # 93行目 character-set-server = utf8mb4 collation-server = utf8mb4_general_ci
3.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'.
# [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'.
# 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
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
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
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
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
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!
4.mysqlに接続します
# mysql Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 50 Server version: 10.5.12-MariaDB-0+deb11u1 Debian 11 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)]> MySQLのバージョンを確認します MariaDB [(none)]> select version(); +---------------------------+ | version() | +---------------------------+ | 10.5.12-MariaDB-0+deb11u1 | +---------------------------+ 1 row in set (0.000 sec)
5. ユーザー情報一覧を表示します
MariaDB [(none)]> select user,host,password from mysql.user; +-------------+-----------+----------+ | User | Host | Password | +-------------+-----------+----------+ | mariadb.sys | localhost | | | root | localhost | invalid | | mysql | localhost | invalid | +-------------+-----------+----------+ 3 rows in set (0.003 sec)
6.データベース一覧を表示します
MariaDB [(none)]> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | +--------------------+ 3 rows in set (0.001 sec)