We have released updates to NGINX Open Source, NGINX Plus, and NGINX Ingress Controller to fix a vulnerability in DNS resolution (CVE-2021-23017). We consider the vulnerability to be low-severity, but encourage users to upgrade to the latest versions.
We discuss how you can use a DNS service like F5 DNS Load Balancer Cloud service to implement three methods for seamlessly and safely deploying application updates to production environments: blue-green, rolling blue-green, and canary releases.
We show how easy it is to increase your application’s availability with F5 DNS Load Balancer Cloud Service performing global server load balancing of NGINX Plus instances that are reverse proxying your applications in multiple cloud regions and locations around the world.
DNS over TLS (DoT) and DNS over HTTPS (DoH) are two emerging technologies for securing Domain Name System (DNS) traffic. In this post we take a look at the history of DNS and show how to implement DoT, DoH, and a DNS filter using NGINX Open Source and NGINX Plus.