Re: [Vserver] Controlling Network Interfaces

From: Herbert Poetzl <>
Date: Sat 23 Sep 2006 - 16:00:26 BST
Message-ID: <>

On Fri, Sep 22, 2006 at 11:06:49AM -0400, John Cianfarani wrote:
> Hello,
> I'm new to using Vserver and have just been testing it the past few
> weeks. Using CentOS 4.3 and the development sources Kernel
> patches 2.1.1-rc31 and utils 0.30.210.
> I've been trying to find information about controlling network
> interfaces from within a guest os. My hope is to have several guests
> on two box and use linux-ha to do an active/passive setup. For this
> to happen the guest running linux-ha would need to control the ip
> assigned to the guest. From my testing it seems this currently cannot
> be done.

if you give the proper capabilities to a guest, it can
do almost everything the host can do, but usually this
goes with a price (lower security)

active/passive failover scenarios are best implemented
on the host, which can in turn start/stop/redirect
guests when needded (inside a guest it doesn't make
too much sense to act on fail/switchovers with network

> I found information regarding some NGNET patches but these
> seem to be dated Nov-2005.
> I guess my questions are: is my setup possible currently with
> Vserver

failover scenarios are successfully implemented with
Linux-VServer, but not in the way you descibe it

> and if NGNET is required are the Nov-2005 patches the current
> ones that should be used?

they are proof of concept patches and not really
suited for production (not speaking of HA :)


> Thanks
> John

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