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Next: 變更 root 密碼 Up: 安裝與配置 Mariadb Previous: 建立使用環境   Contents   DYWANG_HOME

第一次使用

  1. 開始 mysql 的安全設定。
    [root@kvm8 ~]# 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
    you haven't set the root password yet, the password will be blank,
    so you should just press enter here.
    
    Enter current password for root (enter for none): 
    OK, successfully used password, moving on...
    
    Setting the root password ensures that nobody can log into the MariaDB
    root user without the proper authorisation.
    
    Set 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] n
     ... skipping.
    
    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] n
     ... skipping.
    
    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] n
     ... skipping.
    
    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!
    
  2. 使用剛剛設定的 root 密碼登入 mysql。
    [root@kvm8 ~]# mysql -uroot -p
    Enter password: 
    Welcome to the MariaDB monitor.  Commands end with ; or \g.
    Your MariaDB connection id is 12
    Server version: 10.3.11-MariaDB MariaDB Server
    
    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)]>
    
  3. 查看目前的資料庫。
    MariaDB [(none)]> show databases;
    +--------------------+
    | Database           |
    +--------------------+
    | information_schema |
    | mysql              |
    | performance_schema |
    +--------------------+
    3 rows in set (0.002 sec)
    
  4. 查詢變數 open_files_limit 是不是如設定的 10000。
    MariaDB [(none)]> SHOW VARIABLES LIKE 'open_files_limit';
    +------------------+-------+
    | Variable_name    | Value |
    +------------------+-------+
    | open_files_limit | 10000 |
    +------------------+-------+
    1 row in set (0.002 sec)
    
  5. 退出 mysql 資料庫管理。
    MariaDB [(none)]> quit
    Bye
    [root@kvm8 ~]#
    



De-Yu Wang 2020-04-07