DNS Tunneling attack – What is it, and how to protect ourselves?
DNS Tunneling attack turns the Domain Name System (DNS), a highly trusted and widely used system on...
Why does DNS use UDP?
If you have ever wondered why DNS primarily relies on UDP (User Datagram Protocol) instead of other transport protocols like TCP...
What is a Point of Presence (PoP) and Why Does It Matter?
Every time you visit a website, stream a video, or access an online service, your request travels through multiple network points before...
TTL and how to check TTL
TTL – Time to live is a value that signifies how long should the data be kept before...
What is a Recursive DNS server?
When you browse the internet, you don’t write IP addresses to go to the pages you want; you just write the domain. In the...
DNS cache explained
The DNS is a great technology that allows us to use the internet the way we currently know it. It resolves domain names to their IP...