How to define linux home folder group restrictions


When a new domain user logs into a linux client machine and their home folder is created on the client machine, how do I restrict it from being viewable by other domain users who log in at other times? I could manually set the user’s home folder permissions to 0700, but I need this done automatically when it’s created. I tried editing the /etc/adduser.conf file on the client, but when I logged in with a new domain user it didn’t create a restricted home folder as expected. This leads me to believe that the UCS is controlling the home folder permissions. The group is currently ‘Domain Users’ and each home folder is created with 0750 by default. What do I need to change to have new home folders created with 0700 permissions?