Subject: Re: FreeBSD-like jail? And virtual hosting management interface?
To: NetBSD User's Discussion List <netbsd-users@NetBSD.org>
From: Ignatios Souvatzis <email@example.com>
Date: 11/08/2004 09:53:42
Content-Type: text/plain; charset=us-ascii
On Sun, Nov 07, 2004 at 04:47:06PM -0500, Steven M. Bellovin wrote:
> >With Xen you get an entire, complete, true "virtual" host and everything
> >works exactly as anyone would expect it to.
> Xen is great for heavy-weight confinement, but it takes a lot of effort=
> -- you have to build (and maintain) an entire extra NetBSD image for=20
> each such app.
> The interesting question, of course, is whether or not there are=20
> lighter-weight solutions that will do the trick.
I guess you could (NFS-?)mount, read-only, the OS and applications,
leaving only some specific configuration per-machine, similar to what
we did here for a parallel computing lab (I didn't do that with Xen).
See my EuroBSDCon '02 paper. Other people have reported similar solutions.
(I guess you'd use a master virtual machine as the NFS server to limit=20
access of real networks, or maybe share a disk in read-only mode... does
Xen allow this?)
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