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SubjectRe: [PATCH][RFC] Make /proc/<pid> chmod'able
Albert Cahalan wrote:
> This really isn't about security. Privacy may be undesirable.

I agree, privacy is not security. My patch tries to enhance privacy
without giving up security.

You think losing the social pressure that comes with mutual surveillance
results in loss of security, I don't. Now I think Linux should support
both ways and those writing security policies should make the decision.

> With privacy comes anti-social behavior. Supposing that the
> users do get privacy, perhaps because the have paid for it:
> Xen, UML, VM, VMware, separate computers
> Going with separate computers is best. Don't forget to use
> network traffic control to keep users from being able to
> detect the network activity of other users.

That would work, but it requires a *lot* of administrative and computing
overhead. Note that "separate computers" alone is not sufficient
because most places with more than a few machines have some kind of
single signon and run SSH or similar.

[ps, w, top]
> They work like they do with a rootkit installed.
> Traditional behavior has been broken.

That's one way to put it; you could also say those tools now provide
enhanced privacy. ;)

I also think things have changed in the last few years. Since the
advent of special data processing laws privacy is taken more serious.
Privacy certainly was no real concern when UNIX was young. I also guess
it's a cultural thing, its importance being different from country to

It's easily visible in the style of public toilets: in some contries you
have one big room with no walls in between where all men or women
merrily shit together, in other countries (like mine) every person can
lock himself into a private closet. Both ways work, there's nothing too
special about using a toilet, but I'm simply used to the privacy
provided by those thin walls. I assure you, I don't do anything evil in
there. :]
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