Installing LEMP stack on ubuntu 14.04

What is LEMP stack?

LEMP stands for Linux, nginx (pronounced engine-x), MySQL, and PHP. It is actually a variation of the LAMP stack where Apache is replaced with nginx.

Setup

So, We are going to setup LEMP stack on our ubuntu 14.04 machine.

Step 1 : Update Apt-Get

Update the package database. To know more about apt-get, please visit this page.

sudo apt-get update

Step 2 : Install nginx

Installing nginx is very easy as Ubuntu provides nginx package in its default repositories.

sudo apt-get install nginx

We should now be able to access the default Nginx landing page from our browser by entering our server’s domain name or public IP address.

Step 3 : Install PHP

Now it’s time to install PHP. We will be using PHP 7 which is the latest version.

First we need to add PPA for PHP 7 to system’s Apt sources using add-apt-repository command and then install php and php-fpm packages (since nginx communicates with php-fpm).

sudo add-apt-repository ppa:ondrej/php
sudo apt-get update
sudo apt-get install -y php7.0 php7.0-fpm

We may also need to install modules like php7.0-mysql, php7.0-cli etc based on our application requirements.

sudo apt-get install php7.0-mysql php7.0-cli php7.0-mbstring

To find out all available PHP7 modules, we can use the sudo apt-cache search php7-* command.

Configure Nginx to Use the PHP Processor :

Now, we still need to tell nginx to use our PHP processor for serving php files.

First we have to open the default Nginx server block configuration file

sudo nano /etc/nginx/sites-available/default

There is already a server block there, we will change that with the following code,

server {
    listen 80 default_server;
    listen [::]:80 default_server;

    root /var/www/html;
    index index.php index.html index.htm index.nginx-debian.html;

    server_name _;

    location / {
        try_files $uri $uri/ =404;
    }

    location ~ \.php$ {
        include snippets/fastcgi-php.conf;
        fastcgi_pass unix:/run/php/php7.0-fpm.sock;
    }

    location ~ /\.ht {
        deny all;
    }
}

Now, We will restart the nginx server with the following command,

sudo service nginx restart

We can test if everything is working properly by creating a php file in /var/www/html directory and then try to access that file from our browser.

Step 4 : Install MySQL

Now we will install MySQL. we can do it very easily with the following command,

sudo apt-get install mysql-server

To verify if MySQL is installed properly, we can try to login

mysql -u root -p

We should then see a Welcome Screen and we can start writing SQLs there

Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 13
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> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
4 rows in set (0.00 sec)

mysql>

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