Originally Posted by wiremeister
One interesting thing is that sheltiehosting.org and .com will resolve from inside and outside the Comcast network. Where .net will not. I'm almost to the point of changing the nameservers to a .com just to see if it makes a difference. I'm beginning to believe it just might.
Are they also using ns3 and ns4.sheltiehosting.net as nameservers? In that case no glue record is needed because sheltiehosting.net is different from sheltiehosting.org and sheltiehosting.com. That seems to be the reason these domains are resolving.