Re: [9fans] a few Q's regarding cpu/auth server

[John Floren <slawmaster@gmail.com>]

On Thu, Aug 6, 2009 at 8:04 PM, Daniel Lyons<fusion@storytotell.org> wrote:
>
> On Aug 6, 2009, at 6:59 PM, hiro wrote:
>
>> don't forget to take away the connectors from the power and reset
>> buttons, otherwise good security concepts;)
>
> Just out of curiosity, is it possible to simply unbind the console on one of
> these servers after bootup in some startup script? Or perhaps unbind the
> keyboard device, so you can see messages but not type anything in? Maybe use
> cat /dev/kprint instead of rc? It seems like it ought to be possible to
> disable the physical console this way. I ask simply as a way of reducing
> worry about passerby, not as a security solution.
>

You should be able to hack /sys/src/cmd/init.c to make it start
whatever you want after booting, based on init(8), but I haven't tried
it. The man page says it prompts for a password on the cpu server, but
that doesn't happen; the source has a pass function but it's not
called anywhere.

I don't have a real terminal or cpu server at my apartment, so I can't
test it right now.


John
--
"Object-oriented design is the roman numerals of computing" -- Rob Pike