Nginx 403 Forbidden Error: Understanding the Causes

A 403 Forbidden error in Nginx occurs when a user attempts to access a resource that is denied due to permissions issues. This common error can be caused by various factors, including incorrect file ownership, inadequate group permissions, or missing access control lists.

To resolve this issue, it’s essential to identify the root cause of the problem. Here are some steps you can take:

1. **Check file ownership**: Verify that the file or directory in question has the correct owner and group permissions. Ensure that the Nginx user account has read, write, and execute access to the relevant files.
2. **Review group permissions**: Inspect the group permissions for the affected file or directory. Adjust the group settings as necessary to ensure that the Nginx process can read and write to the resource.
3. **Check access control lists**: Verify that the Access Control List (ACL) is correctly configured. If using Linux ACLs, ensure that the Nginx user account has the required permissions.

By addressing these potential causes, you should be able to resolve the 403 Forbidden error in Nginx and restore access to your resources.

Source: https://www.seattletimes.com/life/researchers-develop-new-tool-to-measure-biological-age