On 14-01-02 13:12:31, Chris Murphy wrote:
>
> On Jan 2, 2014, at 9:32 AM, Steve Searle <steve@xxxxxxxxxxxxxxx>
> wrote:
>
> > Around 12:43am on Tuesday, December 31, 2013 (UK time), Patrick
> > O'Callaghan wrote:
> >
> >> Conclusion: better look for some other way to cover your tracks,
> >> and note that a forensic investigation can be carried out without
> >> having you log in at all.
> >
> > Just to emphasise what Patrick says, if you boot Linux into singe
> > user mode, you can get root access without needing a password,
> > which would bypass any setup you had done this way.
>
> Not on Fedora 20 at least, and I think since even Fedora 19, if you
> use "single" boot param you startup to rescue.target. It asks for a
> root password or to press Control-D to continue. If I control-D to
> continue, startup proceeds to default.target. That's typically
> multi-user.target (runlevel 3), or graphical.target (runlevel 5).
>
> I could boot from alternate media, and presumably mount and chroot
> this installation, and compel a change to the root password. But
> apparently not from the installation itself.
There are also initrd break targets, documented in
`man dracut.cmdline`:
"rd.break={cmdline|pre-udev|pre-trigger|initqueue|pre-mount|mount
|pre-pivot|cleanup}
drop to a shell on defined breakpoint"
See `man dracut.bootup` to find out when they happen.
--
____________________________________________________________________
TonyN.:' <mailto:tonynelson@xxxxxxxxxxxxxxxxx>
' <http://www.georgeanelson.com/>
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