[opt1]
  writable = yes
  path = /srv/samba/personal/opt1
  public = yes
  browseable = no
  force user = personal
  force group = personal
  create mask = 0660
  directory mask = 0770
  hosts allow = 192.168.0.38 192.168.0.177 192.168.0.91 192.168.0.27 192.168.0.26 192.168.0.196 192.168.0.79 192.168.2.226
  comment = blah blah blah для того-то blah-blah-blah

В логах:
[2007/10/11 10:40:52, 0] auth/auth_util.c:create_builtin_users(751)
  create_builtin_users: Failed to create Users
[2007/10/11 10:40:52, 0] auth/auth_util.c:create_builtin_administrators(785)
  create_builtin_administrators: Failed to create Administrators
[2007/10/11 10:40:52, 0] auth/auth_util.c:create_builtin_users(751)
  create_builtin_users: Failed to create Users

На клиенте:

$ smbclient -N //files.paradise.next/opt1
Anonymous login successful
Domain=[PARADISE] OS=[Unix] Server=[Samba 3.0.24]
tree connect failed: NT_STATUS_NO_SUCH_GROUP