DNS lookup failed after switching to a VPS

[Brandon Turpin]

We just moved from a reseller account to a unmanaged VPS account. We installed cpanel and WHM, migrated all the sites over. Created nameservers with our domain name and pointed them to the IP of the server (both nameservers have the same IP)

The issue we have is the only site that does not work is our main site which is the same domain name the nameservers are on. It gets an error that the DNS lookup failed. Ran a few test (I am no expert in managing a VPS but not a newbie)

[Removed - Please don't use real domain names and IP addresses]

Being that the IP 172 is a private IP address I am not sure what server is failing. All the other sites using the server and nameserveres are working so I am at a lost of what to do. I thought it would just need to fully propagate, but it has been 5 days now, so I am thinking there is more now.

 

[Brandon Turpin]

The errors that I am getting are

Doing nslookup in terminal I get the errors ;; Got SERVFAIL reply, trying next server

and when I ping the domain name I get "ping: cannot resolve domain name: Unknown

 

[cPanelMichael]

Hello

Have you utilized a website such as IntoDNS to verify the name servers for this domain name are properly configured?

Thank you.