Operations | Monitoring | ITSM | DevOps | Cloud

On Star Trek, there’s an incredibly useful device called the universal translator. As you’d expect, it allows everyone to understand each other. For example, if Captain Jean Luc Picard bumped into a race of aliens that bore a striking resemblance to Commander Riker’s beard, then they could set a date for some Earl Grey tea (hot) thanks to the universal translator. Without it, there might be grave misunderstandings and the firing of photon torpedoes.

It was a cloudy winter morning when I had arrived at the office and found, to our horror, that a Kubernetes cluster was suffering from extremely high CPU and network usage and had become almost completely non-functional. To make things worse, restarting the nodes (the go-to DevOp solution), seemed to have absolutely no effect on the issue. Something was poisoning the network and we had to find out what it was and fast.

Your network is continuously becoming more complex. Whether you’re migrating to the cloud, deploying containers, or load balancing your applications, getting visibility into your network’s architecture is increasingly difficult—yet more important than ever.

Cloudflare, Amazon, Microsoft, and Google are some of the largest managed Domain Name Server (DNS) service providers in the world. They are also just a few of the many DNS providers that have struggled with DNS outages. In fact, Cloudflare had an outage earlier this year due to a bad software deployment.

CoreDNS is a DNS server that can also provide service discovery for microservice-based applications. It’s the default DNS server in Kubernetes, providing name resolution and service discovery for the services operating in the cluster. CoreDNS is easily customizable, so you can define how it should act on each request beyond simply executing a DNS lookup.

We just shipped a feature that’s been high on our list: a full implementation of the public DNS scoring system in your dashboard.

A few days ago, ICANN issued a statement where they call upon everyone to implement DNSSEC across their DNS infrastructure.

What is DNS? DNS is the Domain Name System, or the hierarchical system of nomenclature that orders the names of members who connect to IP networks, such as the Internet. In this article we will briefly learn what DNS is, how it works, what it is used for and some of its advantages and disadvantages. What is DNS? Shall we begin?

For our tech-minded readers, we strongly recommend you read the suggested articles in the US-CERT notification for detailed examples of how the hijacking takes place, for the rest of you, we’ve put together a summary of how the multifaceted attacks work.