DNS cache explained
The DNS is a great technology that allows us to use the internet the way we currently know it. It...
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 the Internet, into a weapon for...
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...
TTL and how to check TTL
TTL – Time to live is a value that signifies how long should the data be kept before discarding. It is commonly used in computers. In...
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...