On 16. 8. 2010 17:29, Mark Knecht wrote:
On Mon, Aug 16, 2010 at 7:16 AM, Bill Longman<[email protected]>:
That is why I picked up Linux-VServer (actually, first I tried
OpenVZ but could not make it run). It is a kind of compromise,
where all guests share the same kernel. This brings certain
security implications, but on the other side, I can run dozens
of guest on a moderate machine, with 4-cores and 8GB memory
(i.e. a guest running bind takes just about 20MB of memory)...
This looks rather interesting, Jarry. Is it simply a matter of compiling
the vserver-sources and util-vserver? Did it take much time to set up
the kernel for your box? Or is it pretty much a typical kernel setup?
Any good tools in the util-vserver package?
vserver-sources and util-vserver was all I needed. Kernel is
pretty much like common, with ~10 additional options. util-vserver
contains handy tools, like "v*" (* being emerge, esync, kill,
limit, mount, ps, sched, etc.). Updating all gentoo-guests can be
done with one command executed in host...
Sounds very efficient.
Really is. Now I'm running 27 guests, mostly gentoo but also
some ubuntu and opensuse. Actually, it is possible to run any
linux-based system (as I said all systems share the same kernel).
There is also pretty good control over resources allocated
to individual guests (disk, memory, cpu).
Administration is very comfortable. Tasks like clonning,
backup/restore, moving, migration, etc, are very easy to...
I guess the baselayout-vserver packages is somehow for setting up each
of the guests?
Guests are installed using customised stage3 (baselayout2-based).
After that, you work with them as with normal gentoo-system.
QUESTION: Where does X run? In the host or separate copies in each guest?
If you need X, you can create a special guest for it, and run X
there. The only thing which must run in host are kernel-modules
(i.e. nvidia driver). I tested this only as an experiment, but
it works. I've heard of someone running X+Wine in vserver-guest.
It is also possible to run X+VMware+Windows in vserver-guest...
For a long time I've wanted to set up a single piece of hardware for
my parents, but with two screens, two keyboards, two mice. Each user
would have what they expect in front of them physically but it's
really a single computer. Can that be done using this software?
Frankly, I do not know. But for each guest you can setup different
tty and IP, so maybe it would be possible. Though I think maybe
some kind of terminal server would be more suitable...
Jarry
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