Re: [Xen-users] XCP Xen Cloud Control System ver 0.3 released!

[Frank Pikelner <frank.pikelner@xxxxxxxxxxxxxxxxxxxxxxxxxx>]

On Tue, 2010-05-25 at 10:04 -0400, Vern Burke wrote:
> I only do static IP assignments on the VMs. I have no idea how you'd 
> stop a VM from running a DHCP server from outside the VM (not that I can 
> imagine why anyone would want to do that anyways). The best answer I've 
> found for a lot of shennanigans is a zero tolerance policy in the terms 
> of service (do it and you're gone, period).
> 

One approach to monitoring for rogue DHCP servers is to monitor the
local LAN by soliciting DHCP requests and checking the offer source(s)
against what is expected. A probe is necessary per vlan.

We've written something like this for our own product. The code is not
complex.

Frank


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