On Mon, 2004-06-14 at 21:15, Ow Mun Heng wrote: > Hi, > > I'm confused, Created a user using > > useradd -c user_full_name -d /dev/null -g GroupA -s /sbin/nologin bob_t > > I see in the /etc/passwd file > > bob_t:x:100:1000:user_name:/dev/null:/sbin/nologin > > Where in /etc/group > > GroupA:x:1000 > > The question is, how come bob_t is not included into GroupA in the > /etc/group file? > > Is the /etc/group file only for supplemental groups which the user bob_t > is also associated with? (and GroupA is the user's primary group and > thus no need to be included?) > > > using the command line parameter usermod -g somegroup username > -- > You are correct. In the Red Hat world and their intent of using UPG (User Private Groups), the primary group relationship is defined in /etc/passwd, it is apparently redundant at best to place the user's name on the group line in /etc/group. A user's name appearing in /etc/group is intended to reflect auxiliary groups only. Remember that, by default, when you create a user it would normally create a group name with the same name as the user and assign the primary relationship to that new "user private group", with the home directory owned by that user and it's UPG. Collaboration is intended to be done with auxiliary groups and SetGID on the shared directories. --Rob
