How to Add Basic Authentication to a Nginx Website

Basic authentication is a simple but effective way to protect a website from unauthorized access. It works by requiring users to provide a username and password before they can access the website.

To add basic authentication to a Nginx website, you need to add the following lines to your Nginx configuration file:

server {
  listen 80;
  server_name example.com;
  auth_basic "Protected Area";
  auth_basic_user_file /etc/nginx/.htpasswd;
  location / {
    ...
  }
}

The auth_basic directive sets the authentication realm. The auth_basic_user_file directive specifies the location of the htpasswd file, which contains the usernames and passwords for authorized users.

The htpasswd file is a simple text file that contains two fields for each user: the username and the password, which is encoded using base64. To create an htpasswd file, you can use the following command:

htpasswd -c /etc/nginx/.htpasswd username

This command will create a new htpasswd file with the specified username and a randomly generated password.

Once you have added the basic authentication directives to your Nginx configuration file, you need to restart Nginx for the changes to take effect.

Once basic authentication is enabled, users will be prompted to enter a username and password before they can access the protected area of your website.

Basic authentication is a simple but effective way to protect your website from unauthorized access. you can add basic authentication to your Nginx website in a matter of minutes.