WordPress Tutorial 3 : How to setup nameservers to point to your domain name to your webhost
Now to do that, simply log in your namecheap account – your domain name registrar and then go to domains and manage domains and you’ll see a dashboard like this. Now click on the domain name you just registered and go to Domain Name Server Setup. This is where you want to enter your two name server addresses privided by your web host. If you unsure what your name server addresses are, simply contact your web host and request for your name servers. It should being sent togather with your web hosting details.
So what you want to do is click on Specify CUstom DNS Servers (Your own DNS Servers) and enter the two name servers provided by web host and Save Chages.
So now its start propagating and your domain name will be linked to your web host.