Installing and Configuring nginx on Ubuntu 16.04.4 LTS

Posted 30 August 2018

Introduction

Nginx is a web server. what then is a webserver? A web server is a server that hosts an application that listens to the HTTP requests .There are a few web servers around, three dominate: Apache , Microsoft InternetInformation Services (IIS) , and Nginx combined have captured around 85 percent of the market.

Why use Nginx

  • it is fast
  • it can accelerate your application
  • it has a straight forward load Balancer
  • it Scales well

Pre-requisite

Before you begin this guide, you should have a regular, non-root user with sudo privileges configured on your server.

Step 1 : Install Nginx

Since this is our first interaction with the apt packaging system in this session, we will update our local package index. Afterwards, we can install nginx: Run the following commands

$ sudo apt-get update
$ sudo apt-get install nginx

Step 2 Adjust the firewall

Nginx registers itself as a service with ufw, our firewall, upon installation. We can list the applications configurations that ufw knows how to work with by typing:

$ sudo ufw app list

you should get output like :

Available Application
Nginx FULL
Nginx HTTP
Nginx HTTP
OpenSSH

As you can see, there are three profiles available for Nginx
Nginx Full: This profile opens both port 80 (normal, unencrypted web traffic) and port 443 (TLS/SSL encrypted traffic)
Nginx HTTP: This profile opens only port 80 (normal, unencrypted web traffic)
Nginx HTTPS: This profile opens only port 443 (TLS/SSL encrypted traffic)

You can enable this by typing:

$ sudo ufw allow ‘Nginx HTTP’

You can verify the change by typing

$ sudo ufw status

You should see HTTP traffic allowed in the displayed output

Status: active
To Action From
OpenSSH ALLOW Anywhere
Nginx HTTP ALLOW Anywhere
OpenSSH (v6) ALLOW Anywhere(v6)
Nginx HTTP (v6) ALLOW Anywhere(v6)

Step 3 Check your webserver

check the status of your webserver

$ service nginx status

When you have your server’s IP address or domain, enter it into your browser’s address bar: http://server_domain_or_IP

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