[libvirt-users] remote connection issue 'virsh -c qemu+ssh:///root at localhost/system list'

[Javi Legido]

Hi Olivia.

Another think that you should check is socat package.

In my documented example the hypervisor running KVM is a Debian squeeze,
and I had to proceed this way:

sudo aptitude update; sudo aptitude install netcat socat -R

sudo vim /bin/netcatsocket

#!/bin/bash
socat - unix-client:$2

sudo chmod +x /bin/netcatsocket

You can try it and see if it helps or not.

PD: looping in again the list, I replied just to Olivia before

Cheers




El 21/03/2013 12:47, "Yin Olivia-R63875" <r63875 at freescale.com> escribió:

> Hi Javier,
>
> Thanks for your help.
> From the pages you provided, I guess you suggest is as below:
> * Cannot recv data: Host key verification failed. : Connection reset by
> peer
>
> Sucede al lanzar:
>
> virt-manager -c qemu+ssh://usuario@hipervisor/system
>
> Solucion: iniciar una sesion SSH para almacenar las claves del hipervisor
> en el cliente:
>
> ssh usuario at hipervisor
>
> Exactly, I've login with ssh and then connect with virsh.
>
> user at x86:~$ ssh root at 10.193.20.109
> root at 10.193.20.109's password:
> root at ppc:~# exit
> logout
> Connection to 10.193.20.109 closed.
>
> user at x86:~$ virsh -c qemu+ssh://root@10.193.20.109/system list --all
> root at 10.193.20.109's password:
> error: failed to connect to the hypervisor
> error: End of file while reading data: nc: invalid option -- 'U'
> BusyBox v1.19.4 (2013-03-08 13:08:18 CST) multi-call binary.
>
> Usage: nc [-iN] [-wN] [-l] [-p PORT] [-f FILE|IPADDR PORT] [-e PROG]:
> Input/output error
>
> It still failed to connect the hypervisor, instead of ssh issue.
>
> Best Regards,
> Olivia
>
> > -----Original Message-----
> > From: javilegido at gmail.com [mailto:javilegido at gmail.com] On Behalf Of
> Javi
> > Legido
> > Sent: Thursday, March 21, 2013 7:35 PM
> > To: Yin Olivia-R63875
> > Subject: Re: [libvirt-users] remote connection issue 'virsh -c
> > qemu+ssh:///root@localhost/system list'
> >
> > Hi Olivia.
> >
> > It's in spanish, but pretty easy to follow, maybe it helps you:
> >
> >
> http://wiki.legido.com/doku.php?id=informatica:linux:virtualizacion:kvm#adm
> > inistrar_kvm_y_vm_desde_una_gui_en_el_cliente
> >
> > With this guide you should be able to connect from a client machine (for
> > instance your laptop) to the hypervisor (KVM) if both have SSH
> connectivity.
> >
> > Cheers.
> >
> > Javier
> >
> > 2013/3/21 Yin Olivia-R63875 <r63875 at freescale.com>:
> > > Hi,
> > >
> > > I'm trying remote connection with qemu hypervisor on FSL PPC board.
> > >
> > > The libvirt server is the PPC board.
> > >
> > > root at ppc:~# ifconfig eth0 10.193.20.109 root at ppc:~# libvirtd -d
> > > root at ppc:~# virsh -c qemu:///system define test.xml root at ppc:~# virsh
> > > -c qemu:///system start test root at ppc:~# virsh -c qemu:///system list
> > > --all
> > >  Id    Name                           State
> > > ----------------------------------------------------
> > >  2     test                           running
> > >
> > > Connect from an X86 PC (Ubuntu 10.04) to the PPC board.
> > >
> > > user at x86:~$ virsh -c qemu+ssh://root@10.193.20.109/system list --all
> > > The authenticity of host '10.193.20.109 (10.193.20.109)' can't be
> > established.
> > > RSA key fingerprint is 2f:56:07:08:da:7d:ac:41:45:57:d2:12:15:19:67:e0.
> > > Are you sure you want to continue connecting (yes/no)? yes
> > > root at 10.193.20.109's password:
> > > error: failed to connect to the hypervisor
> > > error: End of file while reading data: Warning: Permanently added
> > '10.193.20.109' (RSA) to the list of known hosts.
> > > nc: invalid option -- 'U'
> > > BusyBox v1.19.4 (2013-03-08 13:08:18 CST) multi-call binary.
> > >
> > > Usage: nc [-iN] [-wN] [-l] [-p PORT] [-f FILE|IPADDR PORT] [-e PROG]:
> > > Input/output error
> > >
> > >
> > >
> > > I tried to verify the remote connection on localhost. But it also
> failed
> > as below:
> > >
> > > root at mpc8572ds:~# virsh -c qemu+ssh:///root@localhost/system list
> > > --all root at localhost's password:
> > > error: failed to connect to the hypervisor
> > > error: End of file while reading data: nc: invalid option -- 'U'
> > > BusyBox v1.19.4 (2013-03-08 13:08:18 CST) multi-call binary.
> > >
> > > Usage: nc [-iN] [-wN] [-l] [-p PORT] [-f FILE|IPADDR PORT] [-e PROG]:
> > > Input/output error
> > >
> > >
> > > Could anyone give suggestion on this issue?
> > >
> > >
> > > Best Regards,
> > > Olivia
> > >
> > >
> > > _______________________________________________
> > > libvirt-users mailing list
> > > libvirt-users at redhat.com
> > > https://www.redhat.com/mailman/listinfo/libvirt-users
>
>
>
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