[Openstack] Tricky questions - 3/3 Hypervisor: connect to a VM even if I have NO INJECTED NETWORK

Tudor Holton tudor at tudorholton.com
Thu Oct 10 14:31:23 UTC 2013

I can answer this, since a bug in my networking setup caused me to have 
no IP assignment to my VMs for awhile.  The novnc proxy still allowed me 
to access a virtual terminal through horizon.

So, yes, if you have novnc, this is workable.

Without network access, tho, you're pretty limited in what you can do to 
"fix" the problem (unless it's a kernel driver bug of some sort).


On 10/10/13 15:11, Marco Fornaro wrote:
> Hi All,
> Some Tricky questions I ask help for (email 3 of 3):
> (please refer to a scenario with Openstack+Quantum, so we can have 
> complex networks)
> *May I connect to a virtual machine (via the hypervisor I suppose) 
> even if NO IP has been yet injected to the VM?*
> *I mean: *let's suppose that for some reasons  there is no IP injected 
> during the VM creation (I guess that surely this should lead to an 
> error ), the entity that created the VM and is dealing with it is the 
> Hypervisor,*is it theoretically possible, via the Hypervisor, to 
> access the VM?* (I mean "access" ssh-like....being able to launch some 
> commands for diagnosis or rescue)?
> Thanks in advance for any help
> Best Regards
> Marco
> _______________________________________________
> Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
> Post to     : openstack at lists.openstack.org
> Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack/attachments/20131010/82898174/attachment.html>

More information about the Openstack mailing list