Date: Fri, 23 Oct 2015 13:06:39 -0500 (CDT) From: "Valeri Galtsev" <galtsev@kicp.uchicago.edu> To: "Michael Schuster" <michaelsprivate@gmail.com> Cc: "Michael B. Eichorn" <ike@michaeleichorn.com>, "O. Hartmann" <ohartman@zedat.fu-berlin.de>, "freebsd-questions" <freebsd-questions@freebsd.org> Subject: Re: replace uname -a informational string Message-ID: <58311.128.135.52.6.1445623599.squirrel@cosmo.uchicago.edu> In-Reply-To: <CADqw_g%2By=xpzvwk7k8oaC=%2Bdi_WJPBsMVbpgSasX2QchPD4OiQ@mail.gmail.com> References: <20151023090805.5484ce9b@freyja.zeit4.iv.bundesimmobilien.de> <1445622325.1169.29.camel@michaeleichorn.com> <CADqw_g%2By=xpzvwk7k8oaC=%2Bdi_WJPBsMVbpgSasX2QchPD4OiQ@mail.gmail.com>
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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@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/ > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to > "freebsd-questions-unsubscribe@freebsd.org" > ++++++++++++++++++++++++++++++++++++++++ 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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