Curious where your DNS traffic is coming from, how much DNS traffic is on your domain, and what records people are querying for that don’t exist? We now have a Grafana plugin for you.
Grafana is an open source data visualization tool that you can use to integrate data from many sources into one cohesive dashboard, and even use it to set up alerts. We’re big Grafana fans here - we use Grafana internally for our ops metrics dashboards.
In the Cloudflare Grafana plugin, you can see the response code breakdown of your DNS traffic. During a random prefix flood, a common type of DNS DDoS attack where an attacker queries random subdomains to bypass DNS caches and overwhelm the origin nameservers, you will see the number of NXDOMAIN responses increase dramatically. It is also common during normal traffic to have a small amount of negative answers due to typos or clients searching for missing records.
You can also see the breakdown of queries by data center and by query type to understand where your traffic is coming from and what your domains are being queried for. This is very useful to identify localized issues, and to see how your Continue reading
Forward Networks has stepped out of the shadows to announce their Network Assurance platform, and I was fortunate enough to be a delegate for Networking Field Day 13 to see their first public briefing. We were all excited to set foot onto the Andressen Horowitz campus that day, but none of us were quite sure what exactly to expect.
Forward Networks was founded by David Erickson and Brandon Heller, PhD in Computer Science from Stanford University, who saw the great need for help in the networking market and decided to tackle a challenge that no one else recognized. They worked in Nick McKeown’s Lab at Stanford University back in 2006 before SDN was ever put on a Networking Bingo card, let alone even heard of. They helped create the standards and shape OpenFlow as it came into existence. Working on bleeding edge SDN networks they realized that the tools network engineers were dealing with were wholly insufficient to troubleshoot many advanced and complicated networks.
In 2013 they founded Forward networks with the goal of understanding how networks work at the functional level. They’ve written an algorithm that can take in large amounts of data from your devices and build a Continue reading
Legacy security products are not keeping up.
The network is your security tool. Sound familiar?
Addy draws interpretations from the data ExtraHop is picking up real-time.