create / check the name server with proper ip using below mentioned steps
- Click to Server configuration tab
- Click on Basic cPanel & WHM Setup
- Now check the Name server at the bottom of the page
here you will find the name server of your server with the Provided ip likens1.domain-name.com and ns2.domain-name.com
NOTE: it is not necessary to create at least 2 name server with the same ip address.Otherwise you will get an issue in reverse DNS.
If your Reverse DNS is not proper then you will face the issue in emails which are configure to server also you will face many issue regarding the domain resolution over the World major name server.