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MySQL / MariaDB on Ubuntu
The most widely-used open-source relational database family -- MariaDB is Ubuntu's default drop-in replacement for MySQL, fully compatible with the same client tools and SQL syntax.
Esta guía se elaboró a partir de la documentación oficial de MySQL / MariaDB on Ubuntu, enlazada arriba — verifica siempre ahí los nombres exactos de paquetes/versiones antes de ejecutar estos comandos en un servidor de producción, ya que las versiones de la distribución y del proyecto cambian con el tiempo.
1Install MariaDB
sudo apt updatesudo apt install mariadb-server2Run the security setup script
Sets a root password, removes anonymous users and the test database, and disables remote root login -- answer "yes" to each prompt for a production-appropriate default.
sudo mysql_secure_installation3Create a database and a dedicated user for your app
sudo mysql -u root -pCREATE DATABASE myappdb;CREATE USER 'myappuser'@'localhost' IDENTIFIED BY 'a-real-password';GRANT ALL PRIVILEGES ON myappdb.* TO 'myappuser'@'localhost';FLUSH PRIVILEGES;Never connect your app as the root database user -- a dedicated, narrowly-scoped user limits the damage if the app itself is ever compromised.