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<H1>[Mageia-dev] RM replacement</H1>
<B>Luis Daniel Lucio Quiroz</B>
<A HREF="mailto:mageia-dev%40mageia.org?Subject=Re%3A%20%5BMageia-dev%5D%20RM%20replacement&In-Reply-To=%3C1451138.tkDAtiIzef%40elmo.okay.com.mx%3E"
TITLE="[Mageia-dev] RM replacement">dlucio at okay.com.mx
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<I>Fri Aug 5 01:36:13 CEST 2011</I>
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<PRE>Le Jeudi 04 Août 2011 18:39:35 andre999 a écrit :
><i> Luis Daniel Lucio Quiroz a écrit :
</I>><i> > Helo,
</I>><i> >
</I>><i> > As my experience in security field, to make Mageia more available in
</I>><i> > enterprise environments, and specially those that are security
</I>><i> > paranoid, i'm planning to port SRM. SRM is a package that does a
</I>><i> > "secure" file deleting according some security standards (i dont
</I>><i> > remember right now names, i guess it is something in NIST, but that
</I>><i> > doesnt matter really).
</I>><i> >
</I>><i> > My question is, what should be the procedure that when you install srm,
</I>><i> > then the normal rm command could be replaced? i was thinking in
</I>><i> > pushing an alias but what other alternatives do i have?
</I>><i> >
</I>><i> > please comment,
</I>><i> >
</I>><i> > LD
</I>><i>
</I>><i> At first glance that sounds like a reasonable approach EXCEPT -- a
</I>><i> system-level alias would be over-ridden by a user alias.
</I>><i> A user could innocently have an alias such as :
</I>><i> alias rm="rm -i"
</I>><i>
</I>><i> rm is in /bin
</I>><i> - /bin/rm could be replaced with a link to srm, but I don't know if that
</I>><i> would be considered acceptable.
</I>><i> rm would have to be restored if srm were uninstalled
</I>><i>
</I>><i> - wouldn't a link in /usr/bin/rm be executed first ?
</I>><i> Of course that doesn't cover execution with root privileges.
</I>><i> An alias in root wouldn't necessarily work, as an admin could inadvertantly
</I>><i> replace it with another. (By loading a new file with some changed alias,
</I>><i> for example.)
</I>><i> But probably less likely than some user doing the same on their profile.
</I>><i>
</I>><i> There could be other approaches as well ... :)
</I>
You are right! :)
Well another option could be this:
a. we change coreutils to install /bin/rm as /bin/rm.vanilla (or other name,
that really doesnt matter),
b. i change srm to install itself in /bin instead of /usr/bin
c. we place alternatives in both packages to provide /bin/rm, giving
preference to srm if installed, otherwise it will use rm of coreutils
LD
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