Date: Mon, 21 May 2012 19:57:48 +0000 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: Chris Rees <crees@FreeBSD.org> Cc: freebsd-hackers@FreeBSD.org, freebsd-jail@FreeBSD.org, David Windsor <dwindsor@gmail.com> Subject: Re: PID/UID namespaces Message-ID: <39149.1337630268@critter.freebsd.dk> In-Reply-To: Your message of "Mon, 21 May 2012 20:26:15 %2B0100." <CADLo838voV_Xi%2BA_WjD3H7E_d4Qi%2BOdJYnHPoim5BbZAWnXFyg@mail.gmail.com>
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In message <CADLo838voV_Xi+A_WjD3H7E_d4Qi+OdJYnHPoim5BbZAWnXFyg@mail.gmail.com> , Chris Rees writes: >It would certainly prevent many common problems when setting up jails; >UID collision is much more common than you'd think, given that the >default UIDs remain the same. Uhm... jails have separate UID/GID spaces. Filesystems mounted or visible in multiple jails act as shared UID/GID (sub-)spaces for those jails, but there is now way to avoid that, it's a direct consequence of the sharing of the filesystems. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
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