I just did a fresh install of Solaris 2.8 on an existing Solaris 2.6 system. On the system under Solaris 2.6 I was able to do a ypcat passwd, ypcat group, etc and get a listing of the maps. Now I have to user ypcat passwd.byname or ypcat group.byname to get the same result. What did I forget to move over?