What is DNS ? Installation of DNS on Windows Server 2016


This Article is a part of Windows Server 2016 Tutorials series. In the previous Article, we have discussed the Basic configuration of Windows Server 2016. Now we will move forward and see What is DNS and How to Install DNS Role in Windows Server 2016. So Let's get Started.Before Started we will learn what is DNS (Domain Name Service) and how it Works.



What is DNS (Domain Name System)

Ever wondered how the internet workers. When you type a website to address into your browser what actually happens, well it's complicated. Every website, it's just a set of files that are hosted on the server, located somewhere in the world. Every Host server identified by unique numerical IP Address. Like a street address, you can visit. These  IP addresses are long and no one can remember them so we used simple memorable names to stand into the long complicated numbers. For this to work another service name DNS Domain Name Server used. DNS works behind the Server to translate these things back at to numerical IP Addresses and allows your computer to reach them a correct destination.

DNS is a role which is Present in the Windows Server. It is the most important part of a network, As Domain Name System (DNS) is a service that is used to perform the name resolution. Name resolution is a process to Resolve domain names into IP addresses and IP address to domain names. In every Organization, there is a huge number of Systems, and Systems communicate to each other using an IP address, and it is very difficult to remember each and every Systems IP address in a large Organization. DNS service allows us communicating with the systems using the domain names, which is easier to remember than IP addresses.The work of DNS service is to communicate the systems using the domain names and the IP address.





How Domain Name System Works

I will discuss a simple explanation of the heart of what the DNS is, by following a client, and that client is request for some information so that it can get to something that it needs. So www.site.com is going for what the client is looking for, Now by going after www.site.com the client is not able to do much about DNS because these are just words and the computers don’t really talk in words, Computers talk in numbers. And the number which associated with www.site.com is 12.19.206.13 it’s an IP Address .The trick here is we have to make www.site.com to 12.19.206.13. We have to map these 2 things to one another . Essentially that’s what the DNS is all about. So let’s get started and see How the Client Does that.

We start off with the Client .The Client needs to get to www.site.com. In order to get there, it has to know where it is .So it asks its DNS Server Where is www.site.com .Its asks your System DNS Server on the local network, because  that  happens to be the IP Address that is placed in the DNS Field of the network system preferences on the client. So the System’s DNS Server doesn’t know where www.site.com is , but the System’s DNS Server does know where the .com root server is because it’s a root server . So the system’s DNS Server can ask the root .com where is site, the root .com server is responsible for keeping track of all the domains, So it can respond, "well I happened to know that site.com being handled by DNS server over 207.63.51.89 and that server happens to be the source of the Authority as well, so I would go there and ask it". The system’s DNS Server says thanks a lot and it goes over to this new server  and it says ok 207.63.51.89 tell me where is www.site.com ,207.63.51.89 has that fully qualified domain name in its DNS Tables. So it can authoritatively respond that www.site.com is at 12.19.206.13 that is an A Record, and A Record is a Forward that basically connects a name to a number and this is what it’s doing now .So System’s DNS Server has the answer to the client’s original question so it can cache the answer that question and pass the answer on to the client once it’s done this and the client the knows location of the server it was trying to get to the DNS process is complete .So all how DNS Works.So Now We will Install DNS Service in Our Windows Server Machine. 

Let's See how to Install DNS Role in Windows Server 2016.For this, we need to follow the Following Steps.

Steps to Install DNS Role in Windows Server 2016

Step 1. Open your Windows Server and open Server Manager console and go to Manage and then Click on Add Roles and Features, or You can Simply Click on Add Roles and Features from the Server Manager Console.

Step 2. On the Next window, you will see the Prerequisites Window, Click on Next.

Step 3. Now in this Window, Select the Role-based or feature-based installation option and click on Next.     

Step 4. Now we have to Select the Server, just Select a Server from the Server pool. and click on Next.

Step 5. From the list of Server Roles, Check the DNS Server role > Click on Add Features on the popup window and simply Click on Next.


Step 6. This window will show you the Description of the Role which you are installing.Clik on Next.

Step 7. Now you will see a window which confirms the Installation Selections. Click on Install.

Step 8. Wait for the installation bar to complete, after that the Installation of DNS role is completed on your Server.Click on Close.

Congratulations! finally, we have Successfully Installed DNS Server in our Windows Server 2016 Machine. In next Part, we will Configure DNS in our Windows Server 2016 Machine.

So above Steps is all about DNS and it's Installation.With these Steps, you can Install DNS on your Windows Server 2016 Machine. Hope you all like this post, share it with others too and Leave a comment below if you need any suggestion at any steps.


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