Others already answered your main question ... but if you want a "totally
secure system", you need to address other vulnerabilities as well. Securing
against someone who has physical access to the system is very difficult, if
not impossible. 

In your case, you also need to prevent someone from booting the system from
a floppy, which can give the user full, priveleged access to the entire
system. I suppose you could do this either by not having a floppy drive in
the system or by (a) setting the BIOS so the system boots only from C: (or
SCSI, depending on what disk controller you use) and (b) password protecting
the BIOS. Even then, I imagine someone could manage a workaround ... but at
least you've gotten to the point where breaking into the machine requires
opening the box and fiddling with the hardware.


At 10:38 AM 5/4/99 +0300, Michael K. Magambo wrote:
>I have recently installed Redhat 5.2 which is working fine except for
>LILO. A friend of mine entered my system by simply typing linux single.
>He then got super user access. How can I disable this feature of LILO.
>I want a totally secure system.

------------------------------------"Never tell me the odds!"---
Ray Olszewski                                        -- Han Solo
762 Garland Drive
Palo Alto, CA  94303-3603
650.328.4219 voice                              [EMAIL PROTECTED]        
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