How to fix Django error: DisallowedHost at / Invalid HTTP_HOST header: … You may need to add … to ALLOWED_HOSTS
The error log is straightforward. As it suggested,You need to add 198.211.99.20 to your ALLOWED_HOSTS setting. In your project settings.py file,set ALLOWED_HOSTS like this : ALLOWED_HOSTS = [‘198.211.99.20’, ‘localhost’, ‘127.0.0.1’] For further reading read from here.