From: Matthew Hannigan <mlh@zip.com.au>
To: 9fans@cse.psu.edu
Subject: permissions idea (Re: [9fans] on the topic of viruses)
Date: Mon, 1 Oct 2001 18:13:59 +0200 [thread overview]
Message-ID: <3BB89647.BD039EE5@zip.com.au> (raw)
In-Reply-To: <069401c14804$21ca9c40$a2b9c6d4@SOMA>
Fantastic read. One of the most interesting bits
for me was reading x permissions described as not
really permissions at all, which is what I've always
thought. Nice to see it repeated by a more learned
person.
My answer to this would have been to remove them
entirely, not elevate them to a certificate of trust
though?
(thinks bubble)
maybe we reassign the bits meaning: instead of
rwxrwxrwx perhaps we could have rwrwrwrwx where
the doubles are for owner, writing group,
reading group, trustable.
4 groups covers 99+44/99 possibilities. no need
for icky acls ...
Now all I have to do is solve on disk compatibility...
-Matt
PS. sorry if all this is solved by plan9 .. I confess
I haven't installed it yet!
Boyd Roberts wrote:
>
> > http://www.cs.bell-labs.com/who/dmr/tdvirus.pdf
>
> i love the scan. i know that i'd read it, i just can't think how.
>
> paul vixie changed gatekeeper's kernel in '92/93 so that only root
> could set the public execute bit as a form of certification, which
> duff speaks of. of course, this was just glue but nevertheless a
> clever, easy to implement and efficient hack.
next prev parent reply other threads:[~2001-10-01 16:13 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-28 1:06 [9fans] on the topic of viruses dmr
2001-09-28 9:58 ` Boyd Roberts
2001-10-01 16:13 ` Matthew Hannigan [this message]
2001-10-01 16:18 ` permissions idea (Re: [9fans] on the topic of viruses) Matthew Hannigan
2001-10-02 8:34 ` Douglas A. Gwyn
2001-10-02 15:11 ` Matthew Hannigan
2001-10-04 18:36 ` [9fans] capability-based design (Re: permissions idea) Richard
2001-09-28 14:23 ` [9fans] on the topic of viruses Bobby Dimmette
2001-09-28 18:44 ` Boyd Roberts
2001-09-28 20:35 ` Bobby Dimmette
2001-10-01 9:55 ` Douglas A. Gwyn
2001-10-01 10:40 ` Boyd Roberts
2001-10-01 9:55 ` Douglas A. Gwyn
2001-10-02 15:37 permissions idea (Re: [9fans] on the topic of viruses) presotto
2001-10-03 1:14 okamoto
2001-10-04 9:11 ` Douglas A. Gwyn
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=3BB89647.BD039EE5@zip.com.au \
--to=mlh@zip.com.au \
--cc=9fans@cse.psu.edu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).