DNS tunneling is a really dangerous attack that you should be aware of. In this post today, we will take place at it: its main purpose, how it works, and how you can protect against it. So, let’s begin this adventure.

The definition of DNS tunneling

As the name implies, the DNS tunneling is a Domain Name System attack type. It uses a tunnel through which it pushes malware via the client-server model.

In fact, this attack uses DNS as a communication channel to escape the victim’s firewall. Nowadays, we all use the Internet. And to be able to use it, we allow this DNS traffic to pass through our firewall. We do this because we want to access certain sites, or if we have, to access our site. Hackers know this very well and take advantage to attack us. 

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