[Samba] MAPPING one NT GROUP with 2 unix group

[Giovanni Romanenghi]

I have one problem with the mapping Unix group with NT group
I have 3 unix group and I want that two group are mapped with nt group 
"Domain Users" and one with "domain Admins"
For the domain admins there aren't problem but for mapping two unix group 
with the same nt group.

I have the necessity that 2 or plus group unix is mapped with the nt group 
domain user.

Ciao Giovanni