What is a subnet mask?

What is a network?  A network is 2, or more devices (computers, IoT, mobiles, etc.)...


DNSSEC – why is it important?

DNS, by default it is not safe. Its purpose is to be able to provide a decentralized model for...


What is a Recursive DNS server?

If it’s about the domain name system (DNS), there is a lot to be said. It’s not simple stuff....