Hi, I come to you for help. I installed Ubuntu 11.04 on a server ispconfig 3 following your tutorial. I am having a problem with my dns I think. When I do a dig www.powaserv.com, he responds correctly. But I guess the questions in the lan and not on the internet network. Because I powaserv.com the field, which in the DNS as follows: ns3.powaserv.com and ns4.powaserv.com. Directs them logically to my IP. But nothing works, the domain name is not responding. Could you help me? Thank you in advance.