vps nameserver setup not working
<p>I am a noob in the VPS-DNS world.</p>

<p>I purchased a VPS (with one ip) and logged into WHM to setup for production. I configured nameservers to "ns1.a-domain-i-have.com" and "ns2.a-domain-i-have.com". 
Then logged into that domain account at my register where I <br/><br/>
- set default nameservers from the registrar<br/>
- in DNS manager I set ns1, A , my server IP and ns2, A, the same server IP<br/><br/>
After creating a host account in WHM using "another-domain-I-have.com", I registered "ns1.a-domain-i-have.com" and "ns2.a-domain-i-have.com" in the custom nameservers.</p>

<p>But my new website refuse to work/ nothing works, I did all these based on the understanding of tutorials I googled.</p>

<p><strong>I have tried</strong><br/>
- reinstalled the VPS<br/>
- used the default nameserver that came with the VPS host. Although, this nameserver ip is unknown.<br/>
- update cPanel<br/></p>

<p>I need some help!</p>