Disallowed Host at Django

Disallowed Host at Django

If you have been developing a Django app and you encounter a "Disallowed Host" error, don't worry, it's a common issue. This error occurs when a request comes from a host that is not allowed in your Django settings file.

Causes of Disallowed Host Errors

  • Incorrectly defined ALLOWED_HOSTS setting in Django settings file.
  • Request coming from a host that is not listed in ALLOWED_HOSTS.
  • Host header is being added/modified in middlewares or reverse proxies.

Solutions to Disallowed Host Errors

To solve this issue, you need to check your settings file and confirm that the ALLOWED_HOSTS parameter is correctly defined.

Solution 1: Edit your settings.py file and add your domain or IP address to the ALLOWED_HOSTS parameter.

ALLOWED_HOSTS = ['example.com', '']

Solution 2: If you don't know your IP address, you can set ALLOWED_HOSTS to '*' to allow all hosts. However, this is not recommended in production environments.


Solution 3: Check if the request is coming from a host that is not listed in ALLOWED_HOSTS. For example, if your app is running on 'example.com' and someone tries to access it from 'example.net', it will result in a Disallowed Host error.

Solution 4: If you are using a reverse proxy, make sure that the host header is being added/modified correctly. Django needs to receive the correct value of the host header to match it with ALLOWED_HOSTS.

That's it! These are the common solutions to Disallowed Host errors in Django. With these solutions, you should be able to easily fix this problem and continue developing your app.

Subscribe to The Poor Coder | Algorithm Solutions

Don’t miss out on the latest issues. Sign up now to get access to the library of members-only issues.
[email protected]