nginx: Dynamically limit requests based on path

Asked Jul 10 '15 at 19:12

Active Jul 10 '15 at 19:12

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We have a service that serves up user-created assets dynamically. So a user can upload a file and share it using a url like /path/to/asset/unique_id. We currently use the limit_conn module to protect our system by blocking IP addresses that are flooding us with requests.

But we also want to limit requests based on the request path. So if we get a spike in traffic for GET /path/to/asset/unique_id, we start limiting requests to that path but the rest of our service continues to serve assets normally.

Right now we're modifying our nginx config to deny requests using the "location" directive once we see a huge spike for a specific path. But we want our service to be proactive and automatically limit requests per path just like how the limit_conn works for IP addresses.

Does anyone have any idea how to accomplish this? Is it possible?

asked Jul 10 '15 at 19:12

Levi Nunnink

What did you try? – 030 Jul 10 '15 at 20:19
The only thing we've done for this is to specifically deny certain paths using the location directive. For example: location /path/to/asset/unique_id { deny all; return 404; } But this does not scale. – Levi Nunnink Jul 10 '15 at 20:24
i would try to combine `limit_req` and Lua module – Alexey Ten Jul 11 '15 at 18:12
This may help https://stackoverflow.com/questions/40586006/nginx-dynamic-rate-limit (and I have nothing more to say) – Rafael Jun 24 '21 at 14:15

nginx: Dynamically limit requests based on path

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