Reverse DNS lookup is another interesting topic that is not often discussed. As a Linux user, you have several different options to perform it. So, let’s talk a little bit more about it and how you can do it.
Reverse DNS – What is it?
Reverse DNS or rDNS is a very beneficial service that supplies Reverse DNS zones for your domain name. The Reverse DNS zones are required for storing PTR records which are utilized for verification purposes. For instance, to check the IP address and if it points to the proper hostname.