I have an ADSL line with a static IP currently, and I have setup a DNS server which is working fine. I plan to add another ADSL connection with another static IP soon. My question is how do I switch some of the services to the new static IP? For example, if I want to switch www.abc.com (which is currently pointed to the old static IP) to the new static IP, how would the named.conf and my zone file look like? Do I need to have another zone file for the new static IP? Please help with detailed guideline. Thank you.