DNS problem - New server setup on a new vps provider

Hi,

Sorry if this question is a duplicate but I'm very confused and tried finding solution online and testing for a few weeks already. This question deserve a thread because it's a VPS server by a new provider, and they don't have a KB on it.

I bought a VPS server from let's say ABC provider. the server is at server.domain1.com with IP1 the domain1 is at godaddy

On Godaddy, I have added 3 hostnames server.domain1.com ns1.domain1.com ns2.domain1.com

all pointing to IP1

then I changed the domain1 nameservers to server.domain1.com ns1.domain1.com ns2.domain1.com

Then on virtualmin, I have added a master zone with the following setting A record : domain1.com server.domain1.com ns1.domain1.com ns2.domain1.com

NS record : server.domain1.com ns1.domain1.com ns2.domain1.com

Name alias record : www.domain1.com

I'm aware that if on Digital Ocean, I would need to point domain to their nameserver, but I have consulted my VPS provider, they said to point to VPS IP. Thats all, nothing more. But the problem is when I visits the domain, it showed DNS not resolved. What have I done wrong? Please help.