Question : I want to be able to access my internally hosted website using the domain name

I host a website inside my LAN and I can access it internally using it's inside IP and can access it outside the lan using its domain name. I want to be able to access it inside the lan using it's doman name. I have a Pix 515e and I host my own DNS. how do I accomplish this?

Answer : I want to be able to access my internally hosted website using the domain name

You just need to do the additional DNS zone.