How to Install MySQL on CentOS 7

Install MySQL on CentOS 7

MySQL is one of the most popular opensource database management systems. MySQL is a relational database system. It is part of LAMP (Linux, Apache, MySQL, PHP) stack and LEMP (Linux, Apache, MySQL, PHP) stack. In this tutorial, you are going to learn how to install MySQL on CentOS 7.

Prerequisites

Before you start to install MySQL on CentOS 7. You must have the root user account credentials of your system.

Install MySQL

Following are the steps to install MySQL on CentOS. First, you need to enable mysql repository and then you can install MySQL-Server on CentOS.

First you should enable the MySQL 8.0 repository running following command:

sudo yum localinstall https://dev.mysql.com/get/mysql80-community-release-el7-1.noarch.rpm

Now to install mysql-server package run below command:

sudo yum install mysql-community-server

Now confirm the installation and check MySQL version typing following command:

mysql -V

After completing installation MySQL will start automatically. Check MySQL version by typing:

sudo systemctl status mysql

The output should be:

● mysql.service - MySQL Community Server
   Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset: enabled)
   Active: active (running) since Wed 2018-06-20 11:30:23 PDT; 5min ago
 Main PID: 17382 (mysqld)
    Tasks: 27 (limit: 2321)
   CGroup: /system.slice/mysql.service
           `-17382 /usr/sbin/mysqld --daemonize --pid-file=/run/mysqld/mysqld.pid

You can log in to MariaDB by typing

mysql -u root -p

Setting Up MySQL

After installation, we have to improve MySQL security by typing the following:

sudo mysql_secure_installation

The above command will take you to different prompts. In the first prompt, it will ask you to configure Validate Password Plugin which is used to set password validation strength and the levels are low, medium and high. You can prefer any of the strength levels you want to set. If you don’t want to set up the Validate Password Plugin just press ENTER. In the next prompts, you will be asked questions about increasing Security of MySQL. It is recommended to answer ‘Y’ for all questions asked during secure installation.

Conclusion

You have successfully learned how to install MySQL on CentOS 7. If you have any queries please don’t forget to comment out.