DNS stands for Domain Name Service. DNS servers are computers that have software installed on them to provide a server service. They do not provide content, however; they serve it. These servers are then used by programs and devices to translate human-friendly web addresses like google.com into their numerical IP addresses which can be called such as 220.127.116.11 (This is the actual IP address of Google’s main page.)
A DNS server is essentially a computer that holds information about domain names and their corresponding IP addresses, so when you enter a URL into your browser or an application tries to connect to another computer using its name, it contacts one of these servers and either gets the answer right or learns the URL’s corresponding IP address.
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Is a DNS server necessary for IP-based communication?
No, a DNS server is not necessary for IP-based communication. However, it can be used to make life easier. For example, if you enter in your browser the URL https://192.168.0.1 (the administrator screen of your wireless router) instead of having to remember that this address corresponds to 192.168.0.1, we can just use the name “router” in order to find the correct numerical address and get to where we want much faster than by typing everything manually!
What are some of the major benefits of using DNS servers?
The main benefit of using a DNS server is that it makes the internet much easier to use. It can also improve your browsing speed, because you can look up addresses in advance and put them into one text box instead of having to type out long web addresses every time you want to visit a new page.