Note: This article assumes that you have installed Nginx on your server.

Prerequisites

• An Nginx server.
• Access to a Linux privileged user such as root.

Procedure

1. Login into your server via SSH and switch to root user.

   Shell

   su
   

2. Go to your Nginx site configuration.

   Shell

   cd /etc/nginx/sites-available
   

3. Open the configuration file where your site is located.

   Note: This and the following steps may change depending on your configuration. We will assume that you are using the default one.

   Shell

   nano default
   

   or

   Shell

   vim default
   

4. Add the following directives with your desire IP inside the server section.

   nginx

   server {
       allow 192.168.0.0; # here goes the IP you want to allow
       deny all;
       # ...
   }
   

   You can also write the directives inside the http section to apply it to multiple virtual hosts.

   nginx

   http {
       allow 192.168.0.0; # here goes the IP you want to allow
       deny all;
       
       server {
           server_name page1.rackspace.com;
           # ...
       }
       
       server {
           server_name page2.rackspace.com;
           # ...
       }
   }
   

5. Save and close your file.
   To save:
   Ctrl + O
   Enter

   To exit:
   Ctrl + X

6. Restart Nginx

   Note: This step can change depending on your OS.

   Shell

   systemctl restart nginx