Ubunto+ISP

[enriquecm]

well i have problema with the configuration

http://www.howtoforge.com/perfect_setup_ubuntu_5.04

I have one public IP (200.123.123.123)

In my server i have two network interface
1 for lan: eth0 (private IP) (192.168.0.1) <--- for give to the lan administration and internet service
1 for wan: eth1 (200.123.123.123)

I buy tree dns (www.nic.com)
pepito.com = (200.123.123.123)
pancho.com = (200.123.123.123)
cool.com = (200.123.123.123)

to do that I edit /etc/network/interfaces

auto eth1
auto eth0
iface eth0 inet static
address 192.168.0.1
netmask 255.255.255.0
network 192.168.0.0
broadcast 192.168.0.255
gateway 192.168.0.1

then I restart my service
/etc/init.d/networking restart

I edit /etc/hosts
127.0.0.1 localhost.localdomain localhost server

then
echo localhost.localdomain > /etc/hostname
/bin/hostname -F /etc/hostname

Well i think that i dont know what is the problem, but the idea is that:
one user of the lan can access with this ip 192.168.0.1
and the users of the wan can access with this ip 200.123.123.123

and my dns pepito.com, pancho.com, cool.com connect to my server to the wan

ANY IDEAS !!?!?!??!