I need to have to DNS serveres sending updates to each other trough a
firewall. I have problems when i only open 53 in the firewall. Do they use
any other ports to communicate.

Hi

check:
Service overview and network port requirements for the Windows Server system

http://support.microsoft.com/default...b;en-us;832017


--
I hop that helps

Good Luck
Jorge Silva
MCSA
Systems Administrator





"Jesper DK" <(E-Mail Removed)> wrote in message
news:B42F4473-CC6B-4016-882F-(E-Mail Removed)...
>I need to have to DNS serveres sending updates to each other trough a
> firewall. I have problems when i only open 53 in the firewall. Do they use
> any other ports to communicate.