Hello everyone, I was asked to set up a firewall for a Win2K domain controller, which also acts as a print server, web server and SQL server... Last year, I was assigned a similar project but never got around to work on it. However, I did some research on the topic and I was directed to this KB article that lists the ports I have to open for the DC to work behind the firewall: http://support.microsoft.com/kb/179442/ While I have set up firewalls in the past, I'm not very familiar with Windows networks and I would like to hear your opinions on how to go about setting up the firewall. Here's some info about the network. The DC and all the 25 Windows XP desktops that connect to the DC have public IP addresses, but only the DC has a FQDN. The requirement is to keep the desktops' public IP addresses and just move the DC behind the firewall. Again, any tips will be greatly appreciated. Thanks, -G