I own a dedicated Server in OVH, and my DNS are :
Primary DNS : ks221074.kimsufi.com
Secondary DNS : ns.kimsufi.com
My OS is Centos 5, and I don't have a strong experience with Linux, I installed WHM/cPanel in the server.
I want to create an alias DNS eg : ns1.domain.com, ns2.domain.com
so my clients can point they domain names to ns1.domain.com, ns2.domain.com, instead of ks221074.kimsufi.com, ns.kimsufi.com.
I have 2 additional IP adresses.