diff --git a/docs/user-guide/external-articles.md b/docs/user-guide/external-articles.md
index 27a3f44474..8a60ad5676 100644
--- a/docs/user-guide/external-articles.md
+++ b/docs/user-guide/external-articles.md
@@ -4,3 +4,4 @@
 - [Accessing Kubernetes Pods from Outside of the Cluster](http://alesnosek.com/blog/2017/02/14/accessing-kubernetes-pods-from-outside-of-the-cluster)
 - [Kubernetes - Redirect HTTP to HTTPS with ELB and the Ingress-Nginx Controller](https://dev.to/tomhoule/kubernetes---redirect-http-to-https-with-elb-and-the-nginx-ingress-controller)
 - [Configure Nginx Ingress Controller for TLS termination on Kubernetes on Azure](https://blogs.technet.microsoft.com/livedevopsinjapan/2017/02/28/configure-nginx-ingress-controller-for-tls-termination-on-kubernetes-on-azure-2/)
+- [Secure your Nginx Ingress controller behind Google Cloud Armor or Identity-Aware Proxy (IAP)](https://medium.com/google-cloud/secure-your-nginx-ingress-controller-behind-cloud-armor-805d6109af86?sk=f64029bb5624b4ad5cd2828f4c358af3)