[kwlug-disc] SSH to a VM

CrankyOldBugger crankyoldbugger at gmail.com
Fri Feb 6 15:08:05 EST 2015


Well I was puzzled by why virbr0 picked 192.x.x.x when there were two NICs
on that box box on 10.x.x.x.  I assumed that there was some deep reason
behind that which was beyond my understanding.. I could try changing virbr0
tonight and see what happens.

On Fri Feb 06 2015 at 3:05:17 PM Nick Guenther <nguenthe at uwaterloo.ca>
wrote:

> Also to diagnose the last problem--which is not IP related-- run ssh -vv.
> It sounds like you're offering a pubkey and it's rejecting it, and this
> will show you which. I believe openssh by default falls back to asking for
> passwords in this case, but maybe your client config or the VM config is
> denying that.
>
> On February 6, 2015 2:51:19 PM EST, CrankyOldBugger <
> crankyoldbugger at gmail.com> wrote:
>
>> I finally returned to the idea of building some VMs on my home network on
>> an Ubuntu server.  I found uvt-kvm to be a stupid-easy way to actually make
>> the VMs (in this case, a straightforward Ubuntu 14.04 Desktop install).
>>
>> The VM is running fine when I view it in Virtual Machine Manager from a
>> separate desktop client (connect to the host, then open the VM from the
>> list).  I've set up port forwarding on my router, installed SSH on the VM,
>> made sure it's running, installed a ddclient and set up the machine name on
>> dyn.com, generally everything I've done on other physical Ubuntu
>> machines.
>>
>> However, when I try to connect remotely via SSH, I get "Error in TightVNC
>> Viewer: A connection attempt failed because the connected party did not
>> properly respond after a period of time, or established connection failed
>> because connected host has failed to respond."
>>
>> I get this error when I'm outside my network.  From within the network, I
>> get "no route to host" if I use "ssh jeff at 192.168.122.15".
>>
>> Note that my network runs on the 10.x.x.x subnet. The 192.168.122.x came
>> from virbr0 on the physical host box.
>>
>> If I try to ssh from the physical host to the VM, I get "Permission
>> denied (publickey)" before it even asks me to login.
>>
>> So I seem to be missing a hop somewhere from my router to the virtual
>> machine.  Does anyone have any ideas on how to make the connection?
>>
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>>
> --
> Sent from my Android device with K-9 Mail. Please excuse my brevity.
>
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