What is the DNS used for?

What does the acronym DNS stand for?

A Domain Name System is the name space hierarchy.

Domain names are registered with registrars who register their customer's domain name. Each domain has an ID that is unique and points to an authoritative DNS name server on the web. When I type a domain in, say google.com, the name server checks to see if it knows about google.com (yes it does). It then looks at the .com TLD and queries a DNS zone for an address record for google.com (we already know this) and finds it's name server. This process keeps track of who hosts www.com, ecommerce.com and etc. For us, as we type them in. Its easy to get lost in this rabbit hole and it takes me longer to explain then most people know how DNS works, but its important.

What can DNS tell you?

It depends

Many of you who have heard of DNS at least a little may be familiar with the idea of the Domain Name System.

The domain name is usually abbreviated to DNS, however, in a true DNS the domain name is really just a shortcut for the internet-facing IP address of your DNS server.

As a result, the Domain Name System, like HTTP and FTP, and as we'll discuss in this post, is probably one of the more important networking protocols. The Domain Name System, much like FTP, is an application of TCP/IP. DNS is an application layer protocol that sits atop the basic lower layer protocol TCP/IP.

As a result, DNS shares some of the same requirements for proper operation, including the need for the appropriate ports, and the need for a stable source of addresses (also known as the addressing process). However, due to the very wide variety of possible applications of the Domain Name System, the following discussion will focus on a few possible uses for DNS, and a discussion of how to verify the proper operation of DNS for each specific use. The different types of DNS. As you probably already know, DNS has a number of uses, and some of those uses are very specific. DNS can be used in a number of different ways, and to be sure of correct operation, it is important that we understand the various applications of DNS.