What is DNS? How does DNS work?

DNS is a concept frequently encountered by internet users. In particular, concepts such as "changing DNS" and "fast DNS" are widely discussed on various sites. Along with this article, “What is DNS? What does it do? " We will answer questions like.

DNS, which stands for "Domain Name System", passed to our language as Domain Naming System. What it does is actually facilitate our communication with computers. Just as people use names to identify each other, devices that want to connect to the internet use various numbers to identify each other. These numbers are also called IP addresses. - If you want to get more detailed information about IP addresses, you can read our related article here. - DNS provides matching of IP addresses with domain names. Thus, we can surf the internet much more easily.

Let's explain in a simple way how this system works, you type the domain name of that site in the search bar of your browser to go to any website on the internet. DNS is involved in the process at this point so that you can go to this site. It translates the domain name to the IP address of the site you want to go to. For example, when you type "turk.net" in your search bar to enter our website, DNS directs this domain name to the IP address of the site. So instead of typing complex numbers in the search bar, you can browse the internet by typing domain names.

The main purpose of using DNS is to answer the search for the domain name or IP number coming from any network. For this system, "Berkeley Internet Name Domain" software called BIND is used. When you want to reach a website in the network, DNS determines which site, where and which IP and which device they belong to. This way, access is provided.

How Does DNS Work? Name servers and resolvers form the basis of the DNS system. Devices set up as name servers keep IP address information corresponding to host names. Resolvers are DNS clients. DNS clients have addresses of DNS servers.

When a DNS client wants to find the IP address corresponding to the name of any computer, it queries the name server. The name server, that is, the DNS server, also sends the IP address corresponding to this name to the client, if there is such a name in its database. Records must be entered manually in the DNS database.

DNS settings can be changed in some cases. In fact, to use the internet a little faster, you can find a DNS that is faster than your active DNS setting and use it. In this way, you can access the internet a little faster. The most used DNS addresses appear as Google DNS addresses. You can access these addresses on the Internet.