The strongest policy level - which you can choose by entering 2 - will require a password to be at least 8 characters long and include a combination of uppercase, lowercase, numeric and special characters: Securing the MySQL server deployment. If you choose to set up the Validate Password Plugin, any MySQL user that you create password authentication will be asked to have a password that meets the policy of your choice. The first prompt will ask if you want to set up a Validate Password Plugin, which can be used to check the password strength of a new MySQL user before it is deemed valid. This will take you through a series of prompts where you can make some changes to the security options of your MySQL installation. Run the security script with sudo: sudo mysql_secure_installation This script changes some of the less secure defaults for things like remote root credentials and sample users. Step 2 - Configure MySQLįor new installations of MySQL, you will want to run the built-in security script of the DBMS. Since this makes your MySQL installation insecure, we will address this issue next. This will install MySQL, but will not prompt you to set a password or make any other configuration changes. Then install the mysql-server package: sudo apt install mysql-server To install it, update the package index on the server, if you haven't done so recently: sudo apt update At the time of this writing, the version of MySQL available in the default Ubuntu repositories is version 8.0.19. On Ubuntu 20.04, you can install MySQL using the APT package repository. How to install MySQL on Ubuntu 20.04 Step 1 - Install MySQL To follow along with this guide, you will need an Ubuntu 20.04 server with a non-root admin user and a firewall configured using UFW. It implements a relational model and uses structured query language (also known as SQL - Structured Query Language) to manage data. MySQL is an open source database administration system, usually installed as part of the popular LAMP (Linux, Apache, MySQL, PHP / Python / Perl) stack.
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