Mac OS 10.13 Mysqlインストールレコード

1.ホームブリッジのインストール
Homebrewは、アップル社がMacOSに含まないUNIXツールを最も簡単で、最も柔軟な方法でインストールしています.
具体的な取り付け方はもう街が腐っているので、余計なことを言わないで、自分で取り付けます.
2.homebrewでmysqlパッケージをインストールする
Homebrewは私の現在のバージョンシステムでは、ネット上で言ったように、まずbrew updateコマンドの更新を実行する必要はありません.Homerewは自動的に更新されるからです.

XXXdeMacBook-Pro:Dev XXX$ brew install mysql

Updating Homebrew...
==> Auto-updated Homebrew!

インストールプロセスは簡単で、介入する必要はありません.自動ダウンロードが完了した後、パスワードのないrootアカウントを作成しました.

==> Downloading https://homebrew.bintray.com/bottles/mysql-5.7.21.high_sierra.bottle.tar.gz
######################################################################## 100.0%
==> Pouring mysql-5.7.21.high_sierra.bottle.tar.gz
==> /usr/local/Cellar/mysql/5.7.21/bin/mysqld --initialize-insecure --user=xxx --basedir=/usr/local/Cellar/mysql/5.7.21 --datadir=/usr/local/var/mysql --tmpdir=/tmp
==> Caveats
We've installed your MySQL database without a root password. To secure it run:
    mysql_secure_installation

MySQL is configured to only allow connections from localhost by default

To connect run:
    mysql -uroot

To have launchd start mysql now and restart at login:
  brew services start mysql
Or, if you don't want/need a background service you can just run:
  mysql.server start
==> Summary

サービスの開始

XXXdeMacBook-Pro:Dev xxx$ mysql.server start
Starting MySQL
. SUCCESS! 

セキュリティ構成の実行

XXXdeMacBook-Pro:Dev xxx$ mysql_secure_installation

Securing the MySQL server deployment.

Connecting to MySQL using a blank password.

VALIDATE PASSWORD PLUGIN can be used to test passwords
and improve security. It checks the strength of password
and allows the users to set only those passwords which are
secure enough. Would you like to setup VALIDATE PASSWORD plugin?
#      
Press y|Y for Yes, any other key for No: y

There are three levels of password validation policy:

LOW    Length >= 8
MEDIUM Length >= 8, numeric, mixed case, and special characters
STRONG Length >= 8, numeric, mixed case, special characters and dictionary                  file
#      
Please enter 0 = LOW, 1 = MEDIUM and 2 = STRONG: 1
Please set the password for root here.

New password: 

Re-enter new password: 
#        ，   100    ，        
Estimated strength of the password: 25 
Do you wish to continue with the password provided?(Press y|Y for Yes, any other key for No) : y
 ... Failed! Error: Your password does not satisfy the current policy requirements

New password: 

Re-enter new password: 

匿名アカウントを削除し、リモート接続を解除し、testテストライブラリを削除し、権限テーブルを再ロードします.

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) : no

 ... skipping.
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.

#  test 
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! 

接続のテスト

XXXdeMacBook-Pro:Dev xxx$ mysql -uroot -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 6
Server version: 5.7.21 Homebrew

Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
#   
mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
4 rows in set (0.00 sec)

インストール完了!