Understanding DNS: Common Record Types

In my last post in this series I talked about authoritative nameservers and what they do. Their function is responding to queries for domain names they are authoritative for. These queries are for specific record types; in this post I will be talking about common record types you will encounter in your use of the DNS.

For the sake of simplicity and ease of understanding I’m limiting this post to the most common record types i.e records you are most likely to encounter and use in your day-to-day use of the DNS. These are not all the record types that are available for use in the DNS.

Let’s get started.

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Understanding DNS: Recursive Resolvers

In my last post in this series, I mentioned a kind of resolver known as a recursive resolver. In this post, I will explain what a recursive resolver is and how they work.

What is a recursive resolver?

To simply put it: A recursive resolver is a DNS resolver that resolves a DNS query by going through hierarchical sets of authoritative nameservers until it gets an answer to the query.

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