On Sat, 2 Apr 2005 20:39:40 -0800 (PST), Ankit Jain <[EMAIL PROTECTED]> wrote:

>i started the question not to hack any system but i
>was curious to know that in linux its easy to change
>the root passwd

>in this case the authenticity is a problem. still it
>can be changed by a boot CD even i think so u have
>apasswd for boot loader. so in this case what should
>be done?

Startup password for machine in BIOS, disable boot from 
removable media in BIOS.  The truly paranoid may have an 
encrypted filesystem with say a smart card hold the keys.

>         and also is there any other flaws which are
>openly known i am not intrested to destruct any system
>but want to know which is already known to ppl that if
>root passwd can be changed any other way also?

Not flaws as such -- if there is physical access to 
computer it is not secure.  That's why fileservers live 
in locked machine rooms.  

You see that past a certain point, software security 
cannot help?  But they come close in large systems where 
user data is held on network server -- start the machine 
but cannot access private data until login.

Cheers,
Grant.

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