How to install NGINX web server on CentOS and RHEL and Fedora

nginx (engine x) is a powerful web server that is very popular due to its fast speed. nginx also acts as a reverse proxy server. This article will introduce setting up nginx on CentOS, Rhel and Fedora systems.

Step 1: Install nginx

nginx package is available in the default repository. Execute the following command to install the latest nginx available version on your system.

$ yum install nginx    
$ dnf install nginx#On Fedora 22+ systems

Step 2: nginx basic configuration

Make some initial settings before starting nginx. Edit the nginx main configuration file /etc/nginx/nginx.conf and update the values.

$ vim /etc/nginx/nginx.conf

Update the following values:

worker_processes  4;   # Number of CPU available in system 
listen  80;  # Port on which nginx will listen

Step 3: Start nginx service

Use the following command to start the nginx web server and when the system starts nginx is configured to start automatically.

$ systemctl enable nginx.service
$ systemctl start nginx.service

Now, use your favorite browser to access the server on port 80 and it will display the default nginx page.

Step 4: Create virtualhost in nginx

After making the initial configuration changes to nginx, we start by configuring the first virtual host. Start by creating a document root for your application.

$ sudo mkdir -p /var/www/example.com/httpdocs
$ sudo chown -R nginx.nginx /var/www/example.com

Now create an index file with sample text

$ echo "Welcome to NGINX" > /var/www/example.com/httpdocs/index.html

Now create a virtual host configuration file. Just create a copy of the default.conf file called example.com.conf and edit the file in the editor.

$ cp /etc/nginx/conf.d/virtual.conf /etc/nginx/conf.d/example.com.conf
$ vim /etc/nginx/conf.d/example.com.conf

Make some changes to the configuration file like below and keep other settings unchanged.

server {
    listen       80;
    server_name  example.com;

    location / {
        root   /var/www/example.com/httpdocs;
        index  index.html index.htm;

    }

Finally, use the following command to restart the nginx service

$ sudo systemctl restart nginx.service

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