I have a Windows XP and Mac and would like to share my keyboard and mouse. I can setup Synergy using the IP addresses of the two machines, however when I restart any of the machines the IP addresses change, which means I have to configure it again. Is it possible to set up Synergy for using only the computer names of the machines?
Without setting up DNS, this is not possible. And setting up DNS is more complex than two other options you have:
Either of these will allow you to use IP addresses, since they won't change.