replace uname -a informational string

[Valeri Galtsev]

On Fri, October 23, 2015 12:47 pm, Michael Schuster wrote:
> I seem to remember there's a trick using dtrace where you intercept the
> uname syscall/library call  .. that was on Solaris, though, don't know how
> that would map onto FreeBSD.

You needed some privileges for dtrace though... unlike uname. And you
needed binaries compiled appropriately to use dtrace.

Valeri

>
> regards
> Michael
>
> On Fri, Oct 23, 2015 at 7:45 PM, Michael B. Eichorn
> <ike at michaeleichorn.com>
> wrote:
>
>> On Fri, 2015-10-23 at 09:08 +0200, O. Hartmann wrote:
>> > For security purposes, I need to replace the informations given by
>> > "uname -a"
>> > to hode the kernel build system, name et cetera.
>>
>> I presume you intendend 'hide' here?
>>
>> If you want to scrub a binaries of _all_ information about the building
>> system this is a problem Debian is actively working on called
>> 'reproducible builds' but is not possible today.
>>
>> https://reproducible.debian.net
>>
>> If you want to hide the hostname, why not just build with a different
>> hostname set?
>>
>> >
>> > Is there a way to achieve this via setting some knobs in the process
>> of
>> > a
>> > buildkernel?
>> >
>> > Please CC me, I'm not subscriber of the list.
>> >
>> > Kind regards and thanks in advance,
>> >
>> > O. Hartmann
>>
>
>
>
> --
> Michael Schuster
> http://recursiveramblings.wordpress.com/
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++++++++++++++++++++++++++++++++++++++++
Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247
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