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====== Installation d'un serveur MySQL sous Ubuntu 19.10 ======

Sources:
  * [[https://www.cyberpratibha.com/how-to-install-mysql-in-ubuntu/|How to install MySQL in Ubuntu 19.10]]
  * [[https://support.rackspace.com/how-to/install-mysql-server-on-the-ubuntu-operating-system/|Install MySQL Server on the Ubuntu operating system]]

===== Installer le serveur =====

<code bash>
sudo apt install mysql-server
</code>

Vérifier que le serveur tourne :

<code bash>
sudo systemctl status mysql.service
</code>

<code>
● mysql.service - MySQL Community Server
   Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset: enabled)
   Active: active (running) since Tue 2020-03-24 02:34:19 CET; 5min ago
 Main PID: 20760 (mysqld)
   Status: "Server is operational"
    Tasks: 39 (limit: 4915)
   Memory: 380.4M
   CGroup: /system.slice/mysql.service
           └─20760 /usr/sbin/mysqld
</code>

===== Sécurisation =====

<code bash>
sudo mysql_secure_installation
</code>

>Securing the MySQL server deployment.
>
>Connecting to MySQL using a blank password.
>
>VALIDATE PASSWORD COMPONENT 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 component?
>
>Press y|Y for Yes, any other key for No:

Sur une machine de développement, pour ne pas se compliquer la vie, répondre **N**.

>Please set the password for root here.
>
>New password: 
>
>Re-enter new password:

Entrer un mot de passe pour **root**.

>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) :

Répondre **Y** pour ne pas autoriser les login anonymes.

>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) :

Répondre **Y** pour ne pas autoriser le login de **root** à distance.

>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.
>
>Remove test database and access to it? (Press y|Y for Yes, any other key for No) :

Répondre **Y** pour supprimer la base de données de test.

>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) : 

Répondre **Y** pour recharger la table des privilèges.

>All done!

Tester l'accès :

<code bash>
sudo mysql -h localhost -u root -p
</code>

Taper **exit** pour sortir.
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