Re: permissions idea (Re: [9fans] on the topic of viruses)

[presotto@plan9.bell-labs.com]

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Create two groups:

friends
acquaintances

then create the file

> file
chgrp -o friends file
chgrp acquaintances file
chmod 640 file

Make yourself the leader of friends and acquaintances.

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From: Matthew Hannigan <mlh@zip.com.au>
To: 9fans@cse.psu.edu
Subject: Re: permissions idea (Re: [9fans] on the topic of viruses)
Date: Tue, 02 Oct 2001 17:11:08 +0200
Message-ID: <3BB9D90C.C27A64E3@zip.com.au>



"Douglas A. Gwyn" wrote:
> 
> Matthew Hannigan wrote:
> > ... perhaps we could have ...
> 
> I don't think any scheme with fixed categories of trust
> can suffice for heavy-duty security. ...	

Sure; I was just trying to figure out how
to get the mostest for the leastest.

I still think that my scheme of two groups
solves a large nr of cases.

How does plan9 solve the problem of someone
wanting to allow his close friends having write
access, acquaintances read access and others none?

I had a look at the man page but it seems to
have the same triple as unix.  Or can the
owner be a group?

Regards,
 -Matt