Re: [gentoo-dev] Suitable USE flag name for stuff that requires non volatile memory

[Roy Marples]

On Sat, 12 May 2007 09:00:34 -0400
Mike Frysinger <vapier@g.o> wrote:

> On Saturday 12 May 2007, Carsten Lohrke wrote:
> > Does it matter that the DUID-LLT isn't stored when starting from a
> > Live-CD? I don't see why there is the need for a use flag for this
> > functionality, when it doesn't imply a new dependency.
>
> the concern was to have a way to provide "nice" clients for use on
> volatile systems (netboot/livecd/etc...)
>
> everytime you'd boot up such a system and do dhcp, you'd create a new
> unique id and the server would store it ... this isnt very nice to
> the server admin who now has a set of unique ids that will never be
> utilized again but by default would maintain all of them
> -mike

Not only that, but boot of the same computer using a CD 200 times and
you use up 200 leases. Nice DOS attack I'd like to avoid really :)

I've thought long and hard about it and I think a compile time option
is best here. You can still disable the usage of DUID by null arg to
the -I option, but many users launch dhcpcd by hand on the live cds.

Thanks

Roy
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