Why is DNS important?

Why is DNS important?
Riddhi Jindal
Riddhi Jindal

Created: 05/30/2020 10:01 AM - Updated: 05/30/2020 10:02 AM

Why is DNS important?

 


DNS is the important backbone of modern network communications. Our computers actually communicate to each other by IP address.

DNS is the way of addressing computer services. Usually we use names more frequently than we use IP addresses. If DNS fails, we would not be able to find the IP address, and would be unable to access any Internet services without correct ip address. DNS also envision a service, making its IP address less significant. If in future the service changes IP address but keeps the same name, nobody is likely to notice as we all see by name and not by ip address. DNS makes it simpler to move, add and change Internet services.

DNS resolves more than just IP addresses. That system is extensible to multiple record types. For example, the A record takes a address and returns a v4 IP. AAAA takes address and returns a v6 IP. MX takes a name and gives back an ordered list of servers to accept mail for that domain. SRV and TXT records are the textual fields that have been adapted for any number of things. The PTR record receives an IP address and gives back a name, sometimes. The NS record obtain a name and gives a list of servers that are knowledgeable about the records in that domain, where subqueries should be directed.

DNS is a very important part of network architecture. If we do not have DNS we have to memorize all the ip addresses of all the websites we want to use, and that scenario is not at all good.

For example imagine you have to learn all the phone numbers that you would want dial.

 

DNS is a sophisticated and super crucial system in Internet and Enterprise data communications. It needs to be protected and over engineered for communications to thrive.

DNS is a sophisticated and super crucial system in Internet and Enterprise data communications. It needs to be protected and over engineered for communications to thrive.

Was this article helpful?

0 Out of 0 Marked As Helpfull

Have more questions? Please Contact Us