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DNS Protocol

Learn the basics of what DNS protocol is and how it defines communication between DNS client, DNS resolver and DNS name servers.

E-Learning
E-Learning

IPv6 DNS: Understanding IPv6 and a Quick Implementation Guide

IPv6 is a new version of the Internet Protocol, which uses 128-bit IP addresses. We explain IPv6’s slow adoption, and how to support IPv6 in your DNS server.

E-Learning
E-Learning

DNS Failover: Basic Concepts and Limitations

DNS failover helps websites or network services remain accessible in the event of outage. Learn how traditional DNS failover works and its limitations.

E-Learning
E-Learning

DNS: Types of DNS Records, DNS Servers and DNS Query Types

Need a refresher on DNS? In this article, we introduce DNS, explain 3 Types of DNS queries, 3 Types of DNS servers, and 10 types of common DNS records.

E-Learning
E-Learning

BIND DNS: Pros, Cons and Alternatives

How BIND works, advantages and disadvantages, and alternatives including managed DNS and next-generation DNS solutions.

E-Learning
E-Learning

DNS Zones Explained

Learn about DNS zones and zone files and how they relate to domains. Understand DNS zone types, the format and structure of DNS zone files and more.

E-Learning
E-Learning

DNS & Devops

E-Learning
E-Learning

Primary DNS vs. Secondary DNS and Advanced Use Cases

Learn how primary DNS servers work with secondary DNS servers, and how to use secondary DNS for redundancy, performance, DNS migration, and more.

E-Learning
E-Learning

NS1 Academy

Become a DNS master with NS1’s free eLearning curriculum.

E-Learning

Understanding NS1's GeoFilters

Learn how to successfully use geotargeting and geofencing to route traffic. Includes detailed technical info about the differences between both methods, and how and when to use them in tandem.

E-Learning
E-Learning

Anycast: The Fastest Route to a Smart Internet

E-Learning

Understanding TTL Values In DNS Records

E-Learning

The Root Name Servers

E-Learning

DNS Retransmission

E-Learning

What's The Difference? Authoritative and Recursive DNS Explained

E-Learning

NS1 Filter Chain: A Quick Primer

E-Learning

What is Split Horizon or Multiview DNS?

E-Learning

Adding Intelligence to Internet Traffic Routing

E-Learning

Behind the Scenes: How Geographic Routing Works

E-Learning

DNS Records Explained

E-Learning

What Exactly Is Secondary DNS?

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