Not sure if this should belong in the Apace subforum but...I currently have a dynamic dns client from dnsexit.com pointing my domain names to my current external ip. I have multiple sites setup in iis all on the same internal ip and port by using host headers, pointing to the registered domain names. If I setup Apache on that same server (same internal IP address), and setup a virtual site using the same internal ip and same port, would they conflict even with the use of host headers/ virtual sites?? Or, would it work if the Apache sites had a different internal ip, but still on the same port (80)? Thanks for any assistence..