From Internet Phone Book To Traffic Controller: The Future Of DNS


Decentralised working requires thorough, secure DNS management

In a world where organisations increasingly work decentralised, it becomes all more important that you arrive at the right destinations. This makes the system that regulates this, DNS (Domain Name System), even more important for the organisation. Bad DNS management not only limits productivity but also brings increasing security risks.

DNS has traditionally been referred to as the telephone directory of the internet. In daily use, you get online access to information via domain names, such as On the other hand, browsers communicate via Internet Protocol (IP) addresses. DNS translates domain names into IP addresses so browsers can find the correct information.

Every device connected to the internet has a unique IP address that other machines use to communicate with this device. DNS servers save people from having to remember long, complex IP addresses.

The role of DNS is changing

About a decade ago, chances were your applications and data lived in the physical infrastructure of a single data centre. Today, all that has changed: Applications and data are typically spread across multiple endpoints thanks to the rise of cloud technologies.

Over time, the tools that control traffic have also changed. Like the rest of your digital infrastructure, DNS is more dynamic than ever today. You are selling DNS short by calling it a telephone book. The DNS servers act as hubs for countless connections between applications, data, and users. The title of ‘traffic controller’ is therefore not out of place.

Security – the challenge in DNS

Safety is an important responsibility of every air traffic controller. Security has also become a hot topic for DNS. Because DNS is an attractive target for attacks. For example, it is increasingly used as a tool in DDoS attacks, but DNS is also attacked to redirect web traffic to malicious servers.

When everyone works in the office, the role of security is reserved for firewalls and similar measures. But when employees, applications and data are decentralised, DNS also needs to know which routes an information request can and may take.

In concrete terms, this means that DNS blocks the known malware sites’ visits for all network users. When a user clicks on a phishing link, DNS blocks access so that no malware is downloaded. In its role as a traffic controller, DNS thus ensures that you do not accidentally download malware.

It is important that you as an organisation have control over this. Great to let your navigation system determine which route will lead you the fastest to your holiday destination, but is it desirable to give an external party control over the routes within your organisation?

If possible, Google’s traffic controller will always refer you via and/or to Google. The same goes for every major cloud provider. This quickly leads to dependencies, making it less easy to set up a multicloud environment, for example. Therefore, do not bet on one (cloud)horse!

Are you going for the toll road or the B-road?

DNS traffic can easily be compared to the route you take to the campsite in the South of France. You can go to your destination via the toll road or take a B-road. If you take the toll road, you are safe and in control, but there are more obstacles via the B-road. Do you want to be sure that you will arrive safely at your destination in this rapidly changing world? Then arrange for an independent traffic controller to guide you through the obstacles of the modern internet.

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