Blocking all the URL except 1

[Zeal Vora]

Hi

We have a Nginx Box which acts as a reverse proxy to backend applications.

We only want to allow traffic on http://example.com which internally
redirects to specific application. Other then that, every other URI should
be blocked.

For example :-

example.com            Allowed
example.com/test     Blocked
example.com/login    Blocked

How can I achieve this ?

Any help will be appreciated.
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