DNS problems (I think?)

Hello everyone,

I'm trying to setup a server at home for my own use, and possibly allowing a couple of friends to host their sites in the future.

I started with a fresh install of Ubuntu 14.04.3, and installed Virtualmin with the install script. Didn't encounter any problems with the install or setup. I named the server "ns1.mydomain.com"

I enabled port forwarding on my router to the server's internal ip, port 80

I purchased the domain name from namecheap, "mydomain.com", and registered nameservers "ns1.mydomain.com" and "ns2.mydomain.com" with the external ip address of home. I then changed the nameservers of the domain to these 2 nameservers.

I created a virtual server in Virtualmin with the domain name of "mydomain.com" and added 2 "A records" to the DNS records, ("ns1" and "ns2"), both with my external ip address.

After 72 hours I still can't access from the internet. I've tried from outside my internal network, and I've tried going through a proxy server from both inside and outside of my network.

Running "hostname" and "hostname -f" both return "ns1.mydomain.com".

I'm sure it's something stupid on my part, but I can't seem to figure out what I missing. Thanks in advance for any help you can give me.