How to install MySQL 8.0 on Ubuntu 20.04

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Today’s guide describes the process of installing MySQL 8.0 on Ubuntu 20.04. MySQL is one of the most commonly used database management systems. It uses the concept of relational database and has a client/server architecture. It can be installed on various operating systems, including Windows, CentOS and Debian.

Install MySQL 8.0 on Ubuntu 20.04

The following steps describe how to install and configure MySQL 8.0 on Ubuntu 20.04.

Step 1: Add MySQL APT repository in Ubuntu

Ubuntu already comes with a default MySQL package repository. In order to add or install the latest repository, we will install the package repository. Use the following command to download the repository:

wget https://dev.mysql.com/get/mysql-apt-config_0.8.12-1_all.deb

After downloading, install the repository by running the following command:

sudo dpkg -i mysql-apt-config_0.8.12-1_all.deb

At the prompt, select Ubuntu’s Bionic then click it is good

His next prompt shows MySQL 8.0 selected by default.Select the first option and click it is good

How to install MySQL 8.0 on Ubuntu 20.04

In the next prompt, select MySQL 8.0 Server and click it is good.

How to install MySQL 8.0 on Ubuntu 20.04

By default, the next prompt selects MySQL8.Choose the last option it is good then click it is good.

Step 2: Update the MySQL system repository on Ubuntu 20.04

Run the following command to update the system package index list.

sudo apt-get update

Now search for MySQL 8.0 using apt cache, as shown below:

$ sudo apt-cache policy mysql-server
mysql-server: 
 Candidate: 8.0.21-1ubuntu18.04 
 Version table: 
    8.0.21-1ubuntu18.04 500 
       500 http://repo.mysql.com/apt/ubuntu bionic/mysql-8.0 amd64 Packages 
    8.0.21-0ubuntu0.20.04.4 500 
       500 http://ke.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages 
       500 http://ke.archive.ubuntu.com/ubuntu focal-security/main amd64 Packages 
    8.0.19-0ubuntu5 500 
       500 http://ke.archive.ubuntu.com/ubuntu focal/main amd64 Packages 
*** 5.7.31-1ubuntu18.04 100 
       100 /var/lib/dpkg/status

Step 3: Install MySQL 8.0 on Ubuntu 20

After finding MySQL 8.0 in our system, we will install MySQL 8.0 client and MySQL 8.0 server using the following commands:

sudo apt install -f mysql-client=8.0.21-1ubuntu18.04 mysql-community-server=8.0.21-1ubuntu18.04 mysql-server=8.0.21-1ubuntu18.04 

Enter and re-enter the root password when prompted

How to install MySQL 8.0 on Ubuntu 20.04Secure MySQL installation

Run the following command to protect MySQL

$ sudo mysql_secure_installation

press enter.When prompted for a password, provide the root password set above

Enter current password for root (enter for none): <Enter password>
VALIDATE PASSWORD PLUGIN 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 plugin? 

Press y|Y for Yes, any other key for No: Y 

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: 1 
Using existing password for root. 

Estimated strength of the password: 25  
Change the password for root ? ((Press y|Y for Yes, any other key for No) : d


Remove anonymous users? [Y/n] Y 
Disallow root login remotely? [Y/n] Y 
Remove test database and access to it? [Y/n] Y 
Reload privilege tables now? [Y/n] Y 
Thanks for using MariaDB!

Check MySQL version

Connect to MySQL to check the MySQL installation version. To connect to MySQL, run the following command:

mysql-u root -p

Provide the root password set above, once connected, execute the following command to display the MySQL version.

SELECT VERSION()
| VERSION() | 
+-----------+ 
| 8.0.21    | 
+-----------+ 
1 row in set (0.00 sec)

Step 4: Create MySQL user (optional)

While still connected to MySQL, run the following command to create a user:

CREATE USER 'lorna'@'%' IDENTIFIED BY 'MyStrongPass.';
GRANT ALL PRIVILEGES ON * . * TO 'lorna'@'%'; 
FLUSH PRIVILEGES;
exit

Step 5: Enable MySQL remote access (optional)

By default, MySQL remote access is disabled. To enable it, we need to edit the mysqld.cnf file as follows:

$ sudo vim /etc/mysql/mysql.conf.d/mysqld.cnf

Find the “bind_address” line and make the following changes:

# By default we only accept connections from localhost 
#bind-address   = 127.0.0.1 
bind-address   = 0.0.0.0

Save the file and restart mysql

$ sudo systemctl restart mysql

Allow remote connections through the firewall

$ sudo ufw allow from <remote_IP_address> to any port 3306
$ sudo ufw enable

To access the database from a remote computer, run the following command:

$ mysql -u user -h database_server_ip -p

That was about installing mySQL 8.0 on Ubuntu 20.04. Here are more guides that you will be interested in!

  • How to install MySQL 5.7 on Ubuntu
  • How to install MySQL 8.0 on Kali Linux
  • How to install MySQL 5.7 on CentOS 8 / RHEL 8 Linux
  • How to install MySQL 8.0 on CentOS 8 / RHEL 8 Linux
  • How to install MariaDB on CentOS 8 | centOS 7

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