[Samba] Samba and Groups

[Marc Mongeon]

All,

I've just installed and configured a Samba server for the first time.
I am trying to make some sense of the way Unix groups are trans-
lated to their Windows counterparts.  I created two Samba users
on the server:  "root" and "marc".  I set up a Win2000 server and
joined it to the Samba domain ("WINTEST").  I created a share
on the Win2000 server and opened the dialog to set permissions.
In this dialog, I see the "root" and "marc" accounts; I see some
built-in groups like "Everyone", "Authenticated Users", etc.; and,
I see several Unix groups:  dip, src, shadow, utmp...  However,
not all Unix groups are shown, and I don't see any rhyme or reason
to those that are.  I have given no group directives of any kind
in the Samba config file.

It seems that there should be some sort of group file that satisfies
the analogy:  "group file" is to /etc/groups as smbpasswd is to
/etc/passwd.  In searching on the web, I found some info about
a "domain group map" configuration directive that should be valid
for post-2.0.x installations.  I've installed version 2.2.3a, and there is
no mention in the documentation of this directive.  Has it ceased
to exist?

Thanks in advance for your help.  Any advice you can give me
is very much appreciated.

Marc