It sounds like you are trying to set up a Django project and are encountering an error related to the
In Django, the
ALLOWED_HOSTS the setting is a list of host names that are valid for this site. When Django receives a request, it checks the
Host header against this list to ensure that the request is legitimate. This helps prevent an attacker from poisoning the cache by submitting a request with a forged
If you are seeing an error that says that you need to add ‘127.0.0.1’ to
ALLOWED_HOSTS, it means that Django is receiving a request with a
Host a header that includes the value ‘127.0.0.1’ (which is the loopback address for the local host), but this value is not in the
To fix this error, you will need to add ‘127.0.0.1’ to the
ALLOWED_HOSTS list in your Django settings. The
ALLOWED_HOSTS setting is typically found in the
settings.py file of your Django project.
ALLOWED_HOSTS = ['127.0.0.1', 'localhost']
Once you have added ‘127.0.0.1’ to the
ALLOWED_HOSTS list, you should be able to run your Django project without encountering this error.
Few more things you might want to know about the
ALLOWED_HOSTS setting in Django:
- In addition to host names, you can also include domain names and IP addresses in the
ALLOWED_HOSTSlist. For example:
ALLOWED_HOSTS = ['127.0.0.1', 'localhost', 'example.com', '192.168.1.100']
- If you are running Django in production, it is important to set
ALLOWED_HOSTSit to a list of host names that are valid for your site. This will help prevent attackers from forging requests to your site and potentially causing damage.
- By default, Django will raise a
SuspiciousOperationexception if the
Hostthe header of an incoming request does not match any of the values in
ALLOWED_HOSTS. You can customize this behavior by setting the
- If you are testing your Django project on your local machine and you are seeing the error “You may need to add ‘127.0.0.1′ to ALLOWED_HOSTS”, it is probably because you are running the development server with the
runservercommand and have not set
ALLOWED_HOSTS. In this case, you can either set
ALLOWED_HOSTSto include ‘127.0.0.1’ or use the
allow-hostsflag to allow any host header.
I hope this additional information is helpful! Let me know if you have any more questions.
If you have questions and opinions please share them in the comment box.