Thanks ppalias and atheling, finally I was able to solve the problem. The solution was like ppalias said add a DNS server just for my lan and redirect to my server the request that match my domain name.
POST that helped me:
http://www.zeroshell.net/eng/forum/viewtopic.php?t=1567&highlight=dns
I will be trying the loopback POSTROUTING rule that recomended atheling and if at some point I’m able to make it work I will post the solution.
Thanks again,
😀 😀 😀 😀