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6 changes: 3 additions & 3 deletions docs/books/web_services/04-databases-servers.md
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title: Part 4. Databases servers
---

MySQL, MariaDB and PostgreSQL are open source RDBMS (Relational DataBase Managed System).
MySQL, MariaDB and PostgreSQL are open-source RDBMS (Relational DataBase Management System).

## MariaDB and MySQL

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### Security

MariaDB and Mysql includes a script to help you secure your server. It remove for example remote root logins and sample users, the less-secure default options.
MariaDB and Mysql include a script to help you secure your server. It remove for example remote root logins and sample users, the less-secure default options.

Use the `mariadb-secure-installation` and secure your server:

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lrwxrwxrwx. 1 root root 27 Oct 12 2023 /usr/bin/mysql_secure_installation -> mariadb-secure-installation
```

If providing a password each time you have to use mariadb's commands is a problem, you can set up a `~/.my.cnf` file with your credentials, that will be use per default by mariadb to connect to your server.
If providing a password each time you have to use mariadb's commands is a problem, you can set up a `~/.my.cnf` file with your credentials, that will be used per default by mariadb to connect to your server.

```bash
[client]
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