ceri at submonkey.net
Sun Apr 8 19:46:18 UTC 2007
On Sun, Apr 08, 2007 at 10:54:34AM +0100, Robert Watson wrote:
> On Sun, 8 Apr 2007, Dag-Erling Sm?rgrav wrote:
> >Pawel Jakub Dawidek <pjd at FreeBSD.org> writes:
> >>If we move disks with root file system, it's this more or less the same
> >>host, isn't it?
> >No. I recently installed three servers by replicating the disk from a
> >fourth and changing the host name and IP address in rc.conf.
> Yes, one of the nice properties of FreeBSD -- as opposed to, say, Windows,
> is that it's trivial to install a hundred boxes by dropping the same image
> onto all of them and configuring host-specific parameters using DHCP. But
> there is a tricky tension here: the notion of a persisting host ID is very
> useful, in the a similar way to the way in which a persisting SSH host key
> is useful. If we're going to adopt a host ID model, we may want to make
> generation and configuration of the host ID conditional on an explicit
> variable in rc.conf (i.e., hostid_enable="YES" which causes it to be
> generated the first time and loaded future times, similar to SSH keys), and
> make it very easy to force a regen. That way, you can image the boxes with
> the rc.conf setting set, but they don't generate host IDs until they boot
> the first time.
Or perhaps we need an equivalent to sys-unconfig ?
That must be wonderful! I don't understand it at all.
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