Re: [Xen-users] Best way to differentiate between virtual servers and non-virtual servers

[jinho hwang <hwang.jinho@xxxxxxxxx>]

Hi Tait,

Thanks for your reply. 

Let's say my project is an automated management with client-server setting, and it can control cloud or non-cloud machines. One small software installed in a client side can receive a command from the server, and it executes the command and replies the results to the server. It might give a company a good management tool to control the large system. 

I am thinking there are no solid sole method for this problem. It might help to overlap a couple of conditions to check. Like you said, MAC can be one method to check, but it is hard to be sure whether the MAC address is virtual machine's MAC or physical machine's MAC. I need to make sure which one. 

Jinho

On Wed, May 16, 2012 at 10:19 AM, Tait Clarridge <tait@xxxxxxxxxx> wrote:

On Tue, 2012-05-15 at 13:02 -0400, jinho hwang wrote:
> Hi,
>
> Thanks for your reply.
>
> First of all, virtual machines are not controllable. Users will
> install our software voluntarily.
>
> Simple software has a network connectivity and functions that might
> help to figure out whether it is a virtual machine or not.

Although I think that your idea is quite confusing, you could always
check out MAC addresses (unless someone is not using the standard or
default ranges) that may help you differentiate between
physical/virtual.

In terms of your project, you might want to consider that if you have a
person who is logging into a server and performing upgrades/reboots and
has no idea that it could be running multiple virtual machines... that
person shouldn't be logging into that server to begin with.

Tait

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Jinho Hwang
PhD Student
Department of Computer Science
The George Washington University
Washington, DC 20052
hwang.jinho@xxxxxxxxx (email)

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