i had to change my ip address scheme from 192.168.1.X to 172.16.26.X and there are some old Unix boxes that used to use a 192.168.1.X address to get their license info. these Unix boxes are so old, i can't find where the conf files are for their license info. I thought it might be easier if i made a dns alias on what the Unix boxes use for their name server, then they would be able to find the server through the alias. At least that is my theory. the Unix boxes use my win2003 domain controller (172.16.26.3) as the name server. this domain controller happened to be the Unix box license server which was address 192.168.1.220. so if i go into the DNS of my win2003 server and make an alias from 172.16.26.3 to 192.168.1.220, maybe the Unix boxes will find the license info. I'm just not sure how to set up an alias, or if this theory is even in the ballpark.