Testing if you have properly set a Reverse DNS zone and PTR records inside it is a straightforward task with the built-in tool Dig command. You can see if the IP address matches the domain name with a simple DNS lookup. So let’s get into it.
What do we need?
- Linux computer, or a Mac with Homebrew and Dig command installed.
- The built-in tool that is called Dig command.
- The IP address that you want to check.
What is the Dig command?
The Dig command is a built-in command that you can find on any Linux distribution and serves for various DNS lookups, including a Reverse DNS lookup.