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From: M. Warner Losh (impvillage.org)
Date: Sun Feb 03 2002 - 09:06:31 CST
In message: <20020203121438.GA11083meltdown.int.kittenz.org>
: > > This is for 'dump -n' to work.
: > Dump is another program that should be used only by people in group
: > operator.
: Well, dump works (mostly) without any special privileges, so there
: isn't any real reason to restrict it to operator, imho.
: Plus restricting it to operator and keeping it setgid tty sounds like
: something that would make someone cry "give me ACLs!"
Dump can do this by forking wall and hacking wall to have -g for
delivering messages to a group. FreeBSD did this a year or two ago,
and OpenBSD did it several years before that.