What does the status code 404 mean when trying to access the ingress using nginx?

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The status code 404 means "Not Found". It typically indicates that the URL or resource being accessed on the ingress server could not be found. This could be due to a variety of reasons, such as:

1. The URL or resource does not exist on the server.
2. The URL or resource exists but is not accessible due to permissions or other restrictions.
3. There is an issue with the configuration of the ingress server or the upstream backend server.
4. There is an issue with the client's request or the network connection.

To resolve this error, you may need to:

1. Double-check the URL being accessed to ensure it is correct.
2. Check the permissions and access controls for the resource being accessed.
3. Review the configuration of your nginx server or upstream backend server to ensure it is properly configured.
4. Troubleshoot any potential network or client-side issues, such as connectivity or DNS resolution issues.