Re: Linux runlevel 1 doesn't ask for root password
From: Dave Brown (dhbrown_at_hobbes.dhbrown.net)
Date: 08/16/03
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Date: Sat, 16 Aug 2003 02:56:35 GMT
In article <87u18ic3p2.fsf@toncho.dhh.gt.org>, John Hasler wrote:
> Jean-David Beyer writes:
>> So what do you do if you have implemented this and forgotten the root
>> password? Re-install?
>
> Boot from a rescue disk and change the password.
>
>> Or do you keep a copy of the root password written on a post-it note on
>> your monitor?
>
> You might as well, if the machine can be booted into single-user mode with
> no password.
Well, if you can boot from removable media, then a grub password is silly.
Or do you think a potential intruder might not have a resuce disk?
You can remove booting from removable media from the CMOS setup, but given
enough time, an intruder could remove the CMOS password.
Of courss, if the machine is dual bootable, then there's the problem of
access via Windows. (loadlin, etc.) Of course, Windows, at least NT and
2K, may be password protected, but unfortunately, usually not or not very
well. (I've read that 60 percent of Windows machines have an
Administrator password of 'password'.)
Unless a machine is physically secure (no access without key to the lock,
it is not secure. If it is in a locked room, then booting into
single-user mode is deprived from anyone without access to the room, grub
(or lilo) password or not.
-- Dave Brown Austin, TX
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