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MySQL is a relational database management system (RDBMS) that runs as a server providing multi-user access to a number of databases. This is guide, howto install or upgrade Oracle MySQL Community Server latest version 8.0 (8.0.27) on Fedora 35/34/33, CentOS 8, Red Hat (RHEL) 8.5 and Rocky Linux 8.5. This guide works of course with Oracle Linux and Scientific Linux too.

Check video guide howto install MySQL 8.0 on Fedora 35/34 using Oracle’s own dnf repo⌗

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Note: If you are upgrading MySQL (from earlier version), then make sure that you backup (dump and copy) your database and configs. And remember run mysql_upgrade command.

Install MySQL Database 8.0.27 on Fedora 35/34/33, CentOS Stream 8, Red Hat (RHEL) 8.5 and Rocky Linux 8.5⌗

1. Change root user⌗ 

su -
## OR ##
sudo -i

2. Install MySQL YUM repository⌗

Fedora⌗ 

## Fedora 35 ##
dnf install https://dev.mysql.com/get/mysql80-community-release-fc35-1.noarch.rpm

## Fedora 34 ##
dnf install https://dev.mysql.com/get/mysql80-community-release-fc34-2.noarch.rpm

## Fedora 33 ##
dnf install https://dev.mysql.com/get/mysql80-community-release-fc33-2.noarch.rpm

CentOS, Red Hat (RHEL) and Rocky Linux⌗ 

## CentOS Stream 8, Red Hat (RHEL) 8 and Rocky Linux 8 ##
dnf install https://dev.mysql.com/get/mysql80-community-release-el8-2.noarch.rpm

3. Update or Install MySQL 8.0.27⌗

Fedora 35/34/33⌗ 

dnf install mysql-community-server

CentOS Stream 8, Red Hat (RHEL) 8.5 and Rocky Linux 8.5⌗ 

## Disable mysql module to install mysql-community-server ##
dnf -qy module disable mysql

## Install mysql-community-server ##
dnf install mysql-community-server

4. Start MySQL server and autostart MySQL on boot⌗

Fedora 35/34/33 and CentOS Stream 8, Red Hat (RHEL) 8.5 and Rocky Linux 8.5⌗ 

systemctl start mysqld.service ## use restart after update

systemctl enable mysqld.service

5. Get Your Generated Random root Password⌗ 

grep 'A temporary password is generated for root@localhost' /var/log/mysqld.log |tail -1

Example Output:

2021-11-07T16:12:59.692226Z 6 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: rhqo5_gWw%u#

And root password is: rhqo5_gWw%u#

6. MySQL Secure Installation⌗

  • Change root password
  • Remove anonymous users
  • Disallow root login remotely
  • Remove test database and access to it
  • Reload privilege tables

Start MySQL Secure Installation with following command⌗ 

/usr/bin/mysql_secure_installation

Output:

Securing the MySQL server deployment.

Enter password for user root: 

The existing password for the user account root has expired. Please set a new password.

New password: 

Re-enter new password: 
The 'validate_password' component is installed on the server.
The subsequent steps will run with the existing configuration
of the component.
Using existing password for root.

Estimated strength of the password: 100 
Change the password for root ? ((Press y|Y for Yes, any other key for No) : y

New password: 

Re-enter new 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) : y
By default, a MySQL installation has an anonymous user,
allowing anyone to log into MySQL without having to have
a user account created for them. This is intended only for
testing, and to make the installation go a bit smoother.
You should remove them before moving into a production
environment.

Remove anonymous users? (Press y|Y for Yes, any other key for No) : y
Success.


Normally, root should only be allowed to connect from
'localhost'. This ensures that someone cannot guess at
the root password from the network.

Disallow root login remotely? (Press y|Y for Yes, any other key for No) : y
Success.

By default, MySQL comes with a database named 'test' that
anyone can access. This is also intended only for testing,
and should be removed before moving into a production
environment.


Remove test database and access to it? (Press y|Y for Yes, any other key for No) : y
 - Dropping test database...
Success.

 - Removing privileges on test database...
Success.

Reloading the privilege tables will ensure that all changes
made so far will take effect immediately.

Reload privilege tables now? (Press y|Y for Yes, any other key for No) : y
Success.

All done!

Note: If you don’t want some reason, do a “MySQL Secure Installation” then at least it’s very important to change the root user’s password

mysqladmin -u root password [your_password_here]

## Example ##
mysqladmin -u root password myownsecrectpass

7. Connect to MySQL database (localhost) with password⌗ 

mysql -u root -p

## OR ##
mysql -h localhost -u root -p

8. Create Database, Create MySQL User and Enable Remote Connections to MySQL Database⌗

This example uses following parameters:

  • DB_NAME = webdb
  • USER_NAME = webdb_user
  • REMOTE_IP = 10.0.15.25
  • PASSWORD = password123
  • PERMISSIONS = ALL
## CREATE DATABASE ##
mysql> CREATE DATABASE webdb;

## CREATE USER ##
mysql> CREATE USER 'webdb_user'@'10.0.15.25' IDENTIFIED BY 'password123';

## GRANT PERMISSIONS ##
mysql> GRANT ALL ON webdb.* TO 'webdb_user'@'10.0.15.25';

##  FLUSH PRIVILEGES, Tell the server to reload the grant tables  ##
mysql> FLUSH PRIVILEGES;

Enable Remote Connection to MySQL Server –> Open MySQL Port (3306) on Firewall (as root user again)⌗

1. Fedora 35/34/33 and CentOS Stream/Red Hat (RHEL)/Rocky Linux 8.5⌗

1.1 List Your Active Firewalld Zones⌗ 

firewall-cmd --get-active-zones

Example output:

public
  interfaces: wlp1s0

1.2 Add New Rule to Firewalld⌗ 

firewall-cmd --permanent --zone=public --add-service=mysql

## OR ##

firewall-cmd --permanent --zone=public --add-port=3306/tcp

1.3 Restart firewalld.service⌗ 

systemctl restart firewalld.service

2. Test remote connection⌗ 

mysql -h 10.0.15.25 -u myusername -p