MySQL 8 is a very well-known and free system to organize and handle data in a way that makes sense. Many people who work together on free software help make it better. It can be used on lots of different computers, like Linux, Mac, and Windows.
Through this tutorial, we will show you how to install, uninstall, configure and secure MySQL 8 in ubuntu 22.04 system using terminal or command line.
How to Install MySQL 8 on Ubuntu 22.04 Terminal
Steps to install, uninstall, configure and secure MySQL 8 in ubuntu 22.04 using terminal or command line:
- Step 1 – Update System Dependencies
- Step 2 – Install MySQL
- Step 3 – Securing MySQL
- Step 4 – Login to MySQL as root
- Method 1: Create New user
- Method 2: Change Authentication Method
- Step 5 – Uninstall MySQL Ubuntu
Step 1 – Update System Dependencies
Firstly, open terminal or command line and run the following command into it to update latest system dependencies in linux ubuntu server:
sudo apt update sudo apt upgrade
Step 2 – Install MySQL
To install MySQL 8 on Ubuntu 22.04, simply use the following command on command line or terminal:
sudo apt install mysql-server
During the installation, you’ll be prompted to set a password for the MySQL root user. Make sure to choose a strong password and remember it, as you’ll need it to access MySQL.
Once the MySQL installation is completed, the MySQL service will start automatically. To verify that the MySQL server is running, execute the following command on command prompt:
sudo service mysql status
The output should show that the service is enabled and running:
● mysql.service - MySQL Community Server
Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset: enabled)
Active: active (running) since Fri 2022-04-29 00:38:45 UTC; 11s ago
Process: 13836 ExecStartPre=/usr/share/mysql/mysql-systemd-start pre (code=exited, statu>
Main PID: 13844 (mysqld)
Status: "Server is operational"
Tasks: 38 (limit: 1151)
Memory: 351.4M
CPU: 1.043s
CGroup: /system.slice/mysql.service
└─13844 /usr/sbin/mysqld
Step 3 – Securing MySQL
After the installation, it’s recommended to run the MySQL security script to secure your MySQL installation. This script will prompt you to perform several security-related tasks, including removing anonymous users, disallowing remote root login, and more.
Run the script with the following command:
sudo mysql_secure_installation
This will be asked to configure the VALIDATE PASSWORD PLUGIN which is used to test the strength of the MySQL users passwords and improve the security.
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:
Press y if you want to set up the validate password plugin or any other key to move to the next step.
There are three levels of password validation policy, low, medium, and strong; is as follows:
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:
Enter 2 for strong password validation.
On the next prompt, will be asked to set a password for the MySQL root user.
Please set the password for root here.
If you need to set up the validate password plugin, the script will show you the strength of your new password. Type y to confirm the password.
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) :
Next, this will be asked to remove the anonymous user, restrict root user access to the local machine, remove the test database, and reload privilege tables. You should answer y to all questions.
Step 4 – Login to MySQL as root
In MySQL 8.0, the root user is authenticated by the auth_socket plugin by default.
The auth_socket plugin authenticates users that connect from the localhost through the Unix socket file. This means that you can’t authenticate as root by providing a password.
To log in to the MySQL server as the root user, execute the following command.
sudo mysql
Now you can change the authentication type which helps you to login to your MySQL server as root using an external program such as phpMyAdmin.
Here are two methods listed below to access and use mysql in ubuntu:
Method 1: Create New user
This is the recommended option by creating a new dedicated administrative user with access to all databases:
CREATE USER 'admin'@'localhost' IDENTIFIED BY 'password';
GRANT ALL PRIVILEGES ON *.* TO 'admin'@'localhost' WITH GRANT OPTION; FLUSH PRIVILEGES;
Method 2: Change Authentication Method
we can change the authentication method from auth_socket to mysql_native_password. You can do that by running the following command:
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'your_password'; FLUSH PRIVILEGES;
Step 5 – Uninstall MySQL Ubuntu
If, for any reason, you need to uninstall MySQL in ubuntu, you can do so with the following command:
sudo apt remove --purge mysql-server mysql-client mysql-common sudo apt autoremove sudo apt autoclean
Conclusion
Congratulations! You’ve successfully installed MySQL 8 on your Ubuntu 22.04 system. You can now start using MySQL to manage your databases and data.
