How To Install MySQL 5.7 on Ubuntu 16.04

How To Install MySQL 5.7 on Ubuntu 16.04

Overview

MySQL is one of the most used database for web based application. It’s the M in LAMP stack.

Ubuntu 16.04 Xenial Xerus shipped with MySQL 5.7 so we can easily install MySQL 5.7 without adding additional repository.

In this tutorial we’ll learn how to install MySQL 5.7 on Ubuntu 16.04 LTS (Xenial Xerus).

This tutorial assume that we will install MySQL 5.7 on a fresh Ubuntu 16.04 installation or on a system that have no MySQL server or similar database like MariaDB or percona server for MySQL installed.

Install MySQL 5.7

Update system apt-get metadata using command below:


$ sudo apt-get update

Install MySQL 5.7 using command below


$ sudo apt-get install mysql-server

MySQL 5.7 packages

Press Y to continue the installation process.

The installation process will take some times to finish since it needs to download mysql-server and all dependencies from internet.

The installer will ask for MySQL root user password. Please not that MySQL root and Linux system root is different.

MySQL 5.7 set root password

Confirm root user password.

MySQL 5.7 Confirm root password

After the installation is finished you can check the service status using command below.


$ sudo systemctl status mysql

The output should look similar to output below. The output below shows that MySQL is running.


● mysql.service - MySQL Community Server
Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset: enabled)
Active: active (running) since Mon 2017-07-17 19:33:34 UTC; 1min 27s ago
Main PID: 14443 (mysqld)
CGroup: /system.slice/mysql.service
└─14443 /usr/sbin/mysqld

Jul 17 19:33:33 ubuntu-xenial systemd[1]: Starting MySQL Community Server...
Jul 17 19:33:34 ubuntu-xenial systemd[1]: Started MySQL Community Server.

To stop MySQL Server you can use command below.


$ sudo systemctl stop mysql

When we re-check the status it will show that the server is stopped.


$ sudo systemctl status mysql
● mysql.service - MySQL Community Server
Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset: enabled)
Active: inactive (dead) since Mon 2017-07-17 19:35:56 UTC; 14s ago
Process: 14607 ExecStartPost=/usr/share/mysql/mysql-systemd-start post (code=exited, status=0/SUCCESS)
Process: 14606 ExecStart=/usr/sbin/mysqld (code=exited, status=0/SUCCESS)
Process: 14597 ExecStartPre=/usr/share/mysql/mysql-systemd-start pre (code=exited, status=0/SUCCESS)
Main PID: 14606 (code=exited, status=0/SUCCESS)

Jul 17 19:35:47 ubuntu-xenial systemd[1]: Starting MySQL Community Server...
Jul 17 19:35:48 ubuntu-xenial systemd[1]: Started MySQL Community Server.
Jul 17 19:35:55 ubuntu-xenial systemd[1]: Stopping MySQL Community Server...
Jul 17 19:35:56 ubuntu-xenial systemd[1]: Stopped MySQL Community Server.

To start the server we can use command below


$ sudo systemctl start mysql

We can also restart mysql using command below


$ sudo systemctl restart mysql

Login to MySQL Server 5.7

Now let’s login to MySQL Server that we just installed.


$ mysql -u root -p
Enter password:

Enter root user password that we set on installation process.

After successful login we will get to MySQL console.


Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 6
Server version: 5.7.18-0ubuntu0.16.04.1 (Ubuntu)

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>

Press CTRL+D to exit from MySQL console.

Securing MySQL Server 5.7

We can secure MySQL server 5.7 with tools shipped with MySQL called mysql_secure_installation. We don’t need to do sudo to run this application. Let’s start securing our MySQL installation.

 


$ mysql_secure_installation

Securing the MySQL server deployment.

Enter password for user root:

Enter MySQL’s root password.

First step is to enable Validate password plugin. We will enable this plugin by entering Y.


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

We will use the highest level of password validation policy, the STRONG one. Enter 2 to use STRONG password validation policy,


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: 2

The script will check for current root password strength.

My current root password strenght is 50, I choose to change the root password that I use.


Using existing password for root.

Estimated strength of the password: 50
Change the password for root ? ((Press y|Y for Yes, any other key for No) : Y

Input new password and confirm new password.


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

Remove anonymous user by choosing 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.

Ensure root can only login locally from the database machine, this will block root login remotely.


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.

Remove default test database


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.

Reload all privilege tables.


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!

We finished securing our MySQL database installation.

Input Sample Database

MySQL provides several <a href=”https://dev.mysql.com/doc/index-other.html”>sample database</a>. We will use Sakila sample database to be imported to our mysql database installation.

Download the database dump


$ wget -c http://downloads.mysql.com/docs/sakila-db.tar.gz

Extract downloaded archive


$ tar xzf sakila-db.tar.gz

Go to extracted directory


$ cd sakila-db

Input sakila schema. This will create database and tables.


> mysql -u root -p < sakila-schema.sql

Input sakila data


> mysql -u root -p < sakila-data.sql

Now login to MySQL database


$ mysql -u root -p

After successfully login lets see list of databases.


mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| sakila             |
| sys                |
+--------------------+
5 rows in set (0.01 sec)

Now let’s use Sakila database


mysql> use sakila

Show all tables inside sakila database.


mysql> show tables;
+----------------------------+
| Tables_in_sakila           |
+----------------------------+
| actor                      |
| actor_info                 |
| address                    |
| category                   |
| city                       |
| country                    |
| customer                   |
| customer_list              |
| film                       |
| film_actor                 |
| film_category              |
| film_list                  |
| film_text                  |
| inventory                  |
| language                   |
| nicer_but_slower_film_list |
| payment                    |
| rental                     |
| sales_by_film_category     |
| sales_by_store             |
| staff                      |
| staff_list                 |
| store                      |
+----------------------------+
23 rows in set (0.00 sec)

Summary

In this tutorial we learned how to install MySQL 5.7 on Ubuntu 16.04. We learned securing MySQL installation using mysql_secure_installation script provided by MySQL.

We also learned importing Sakila sample database and do several queries to the database. Have fun with MySQL!

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