Educational resources

17 Nov 2019
Netnod recently launched a Network Time Security (NTS) service. This page explains how you can start using NTS. It explains how to set up an NTS client and connect to Netnod’s NTS servers.
4 Nov 2016
An Internet Exchange Point is where Internet networks come together to peer or exchange traffic between their networks. Peering is a process by which two Internet networks connect and exchange traffic.
3 Nov 2016
Peering is a process by which two Internet networks connect and exchange traffic. It allows them to directly hand off traffic between each other’s customers, without having to pay a third party to carry that traffic across the Internet for them. Peering is distinct from transit, the more usual way of connecting to the Internet, in which an end user or network operator pays another, usually larger, network operator to carry all their traffic for them.
3 Nov 2016
An Internet Exchange Point is where Internet networks come together to peer or exchange traffic between their networks. Internet exchange points are not Internet service providers. While they allow network operators to exchange traffic with other network operators, an exchange point will not sell you anything resembling complete Internet connectivity. They are, instead, one of the building blocks around which the Internet is built.
25 Oct 2016
Root name servers are the servers at the root of the Domain Name System (DNS) hierarchy.
24 Oct 2016
The Domain Name System is a system without which the rest of the Internet doesn’t work. Without the DNS, typing in www.netnod.se or any of the other names you use on a regular basis would get you nowhere.
22 Oct 2016
Every device connected to the Internet needs a unique Internet Protocol (IP) address so it can communicate with other devices. IP addresses identify devices within networks, allowing the Internet’s routing system to transfer packets of data between hosts (such as a computer, website, or mobile device). IPv4 and IPv6 are the forms of IP addresses in use today.
27 Sep 2016
Here we answer some of the most common questions about peering, IXPs and Netnod IX.
24 Sep 2016
Netnod's Lars-Johan Liman answers frequently asked questions about Internet's root servers functions. Read here to better understand how they function.