MySQL is an opensource, Relational Database Management System. MySQL is a most popular database server for Linux systems, it also supports a large number of platforms. In MySQL, we can easily create stored procedure and execute SQL queries. MySQL Community Edition is a freely downloadable version ans use for your applications.
In this tutorial, you will get details to how to Install MySQL Server (Community Edition) on CentOS, RHEL 7/6/5 and Fedora 25/24/23 using yum package manager.
Step 1. Add MySQL Yum Repository
First, we need to add MySQL yum repository in our system provided by MySQL. Execute one of below command as per your operating system version.
### For CentOS/RHEL 7 system# rpm -Uvh https://repo.mysql.com/mysql57-community-release-el7.rpm ### For CentOS/RHEL 6 system# rpm -Uvh https://repo.mysql.com/mysql57-community-release-el6.rpm ### For CentOS/RHEL 5 system# rpm -Uvh https://repo.mysql.com/mysql57-community-release-el5.rpm ### For Fedora 25 system# rpm -Uvh https://repo.mysql.com/mysql57-community-release-fc25.rpm ### For Fedora 24 system# rpm -Uvh https://repo.mysql.com/mysql57-community-release-fc24.rpm ### For Fedora 23 system# rpm -Uvh https://repo.mysql.com/mysql57-community-release-fc23.rpm
Step 2. Install MySQL Server
As we have successfully added MySQL yum repository in our system. Let’s move for MySQL installation. Execute below command to install MySQL server on your system. This will also install some other dependencies in the system.
# yum install mysql-community-server
# CentOS, RHEL and Fedora < 22# dnf install mysql-community-server # Fedora 22+ Systems
With the installation of MySQL 5.7, a temporary password is created for MySQL root user. You can find the temporary password generated in log files.
# grep "A temporary password" /var/log/mysqld.log [Note] A temporary password is generated for [email protected]: hosygMikj1+t636
Step 3. Start MySQL Service
Start the MySQL server with the following commands from Linux terminal
### Using SysVinit# service mysqld start ### Using Systemd# systemctl start mysqld.service
You can check the status of the MySQL server or stop MySQL server using following commands as per your operating system version.
### Using SysVinit# service mysqld status # service mysqld stop < ### Using Systemd# systemctl status mysqld.service # systemctl stop mysqld.service
Step 4. MySQL Post Install Setup
After installing MySQL first time, execute
mysql_secure_installation command to secure MySQL server. It will prompt for few question’s, we recommended to say yes ( y ) for each.
New password: Re-enter new password: The 'validate_password' plugin is installed on the server. The subsequent steps will run with the existing configuration of the plugin. 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) : No ... skipping. 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!
Step 5. Start and Connect MySQL Server
After completing all MySQL installation steps and doing all initial settings, restart MySQL service using the following command.
### Using SysVinit# service mysqld restart ### Using Systemd# systemctl restart mysqld.service
Also, enable service to auto start on system reboot with the following command.
### Using SysVinit# chkconfig mysqld on ### Using Systemd# systemctl enable mysqld.service
Now connect mysql database server Linux shell using below command. It will prompt for password for authentication. On successful login you will get mysql command prompt, where we can execute SQL queries.
mysql -u root -p
Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 12 Server version: 5.7.18 MySQL Community Server (GPL) Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql>