null-group

This attribute identifies a UNIX group that can replace a deleted group trustee--a user or group with special permissions regarding an entrusted file or directory--of a NetWare realm file service. By default, this attribute has no definition. If you do not identify a group trustee when you use this attribute, the file owner's UNIX group becomes the trustee.

Usage:

tnservice -M -r NW -s service -a null-group=groupid