you are right, I was thinking of tru64 unix (http://en.wikipedia.org/wiki/Tru64_Unix) . I have a copy of hp ux somewhere and I remember being unable to run it in a vm because the vm software i was using didn't support that architecture. I checked and it turns out there is something called HPPAQEMU that does it now (don't know if it's legal to run hp-ux in a vm or not though).

Thanks for the clarification.

Michael.
> HP-UX runs on PA-RISC and IA-64, Solaris on SPARC, IA-32
> and x86-64
> processors. HP-UX is pure big-endian, while Solaris is only
> big-endian
> on SPARC.
>
> Cheers,
> Roland

> >>>> Exploits don't work for HP/UX as they do
> for
> >> "normal" Linuxes/Unixes. This is because HP/UX (as
> far as I
> >> know) mainly works on SPARC CPU's, thus having Big
> Endian
> >> instructions which is different from standard x86
> - or am I
> >> wrong?
> >
> > forgive me if I'm wrong but is't hp ux suppose to run
> on alpha architecture or something like that? i thought
> sparc was mainly for solaris/opensolaris.
> >
> > also,I get how the shellcodes and all that has to be
> different but i still fail to understand how a buffer
> overflow would work on one architecture and fail on
> another.i am always baffled when i hear a  certain
> vuln/exploit is only on x86 or x86_64. I'm sure there is an
> explanation to this i just don't know it yet so please
> enlighten me on the this subject.
> >
> > Cheers :)

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