• Start the application named: IIS Manager.
• Select your website
• On the right part of the screen, access the option named: HTTP Response Headers.
• On the top right part of the screen, click on the Add option.

• To enable the X-Content-Type-Options header, enter the following configuration:

  • NAME: X-Content-Type-Options
  • VALUE: nosniff

   

  Click on the OK button.

In your nginx.conf file add:

add-header X-Content-Type-Options "nosniff";

Make sure that the headers module is loaded: sudo a2enmod headers 

Add the following code to the apache2.conf file:

<IfModule mod_headers.c>
        Header always set X-Content-Type-Options "nosniff"
</IfModule>