# Ingress-nginx rate limitting

**URL:** <https://discuss.kubernetes.io/t/ingress-nginx-rate-limitting/13785>\
**Category:** General Discussions\
**Created:** [November 20, 2020, 3:20pm UTC](https://discuss.kubernetes.io/t/ingress-nginx-rate-limitting/13785 "2020-11-20T15:20:27Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Xavier\_Krantz](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.kubernetes.io/xavier_krantz/32/5999_2.png) [@Xavier\_Krantz](https://discuss.kubernetes.io/u/Xavier_Krantz)\
**Post date:** [November 20, 2020, 3:20pm UTC](https://discuss.kubernetes.io/t/ingress-nginx-rate-limitting/13785/1 "2020-11-20T15:20:27Z")

</div>

### Cluster information:

Kubernetes version: `1.16.13-gke.401`  
Cloud being used: `GKE`  
Installation method:  
Host OS: `Cos`  
CNI and version: ?  
CRI and version: `docker`

Hi there !

We are currently trying to mitigate DDoS attack on one of our service.  
We wanted to use the “rate limitting” feature of the `ingress-nginx` controller as documented over here:

- [https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/annotations/#rate-limiting](https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/annotations/#rate-limiting)

The config seems to have been reloaded an applied properly

```auto
kubectl ingress-nginx conf --deployment nginx-ingress-controller -n ingress-nginx | grep -i limit_req
	limit_req_status 503;
	limit_req_zone $limit_cHJvZHVjdGlvbl9nb3ZpcnR1by1jb21fNzkyNjRlOGYtMzg0ZS00YWE2LThiMmEtNDlmMGFkNDY5MjMz zone=<NAMESPACE>_<INGRESS_HOST>_79264e8f-384e-4aa6-8b2a-49f0ad469233_rps:5m rate=15r/s;
			limit_req zone=<NAMESPACE>_<INGRESS_HOST>_79264e8f-384e-4aa6-8b2a-49f0ad469233_rps burst=75 nodelay;
			limit_req zone=<NAMESPACE>_<INGRESS_HOST>_79264e8f-384e-4aa6-8b2a-49f0ad469233_rps burst=75 nodelay;
			limit_req zone=<NAMESPACE>_<INGRESS_HOST>_79264e8f-384e-4aa6-8b2a-49f0ad469233_rps burst=75 nodelay;
			limit_req zone=<NAMESPACE>_<INGRESS_HOST>_79264e8f-384e-4aa6-8b2a-49f0ad469233_rps burst=75 nodelay;
			limit_req zone=<NAMESPACE>_<INGRESS_HOST>_79264e8f-384e-4aa6-8b2a-49f0ad469233_rps burst=75 nodelay;
			limit_req zone=<NAMESPACE>_<INGRESS_HOST>_79264e8f-384e-4aa6-8b2a-49f0ad469233_rps burst=75 nodelay;

```

However, we don’t see any effectes on ou graph …

How can I know it is working properly ?

(I know it sounds more like a classic Nginx question but still, wondering if somebody here has a lead)

PS: I have already read:

- [http://nginx.org/en/docs/http/ngx\_http\_limit\_req\_module.html#limit\_req\_log\_level](http://nginx.org/en/docs/http/ngx_http_limit_req_module.html#limit_req_log_level)
- [https://www.nginx.com/blog/rate-limiting-nginx/#Configuring-Related-Features](https://www.nginx.com/blog/rate-limiting-nginx/#Configuring-Related-Features)

Without success.

Thank you all for your time and help !

🙏