Hello Richard / Shahar,

I installed and enabled nc on Xen Server host. Now the " ...... sh: nc: command not found: Input/output error" is gone. Communication is established. However I am still getting two specific errors:

VDSM ovirt_engine command failed: End of file while reading data: : Input/Output error

&

Failed to retrieve VMs Information from the external server xen+ssh://root@192.168.1.40

I am receiving the same error when I run virsh -c xen+ssh://root@192.168.1.40

Screen shot is attached for quick reference.

Is it something to do with firewall / ip tables on xen server or libvirtd host?

--

Thanks & Regards,

Anantha Raghava


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On Wednesday 10 August 2016 06:04 PM, Anantha Raghava wrote:

Hi,

Let me try this and post the results here.

Regards,
Ananth

On 10 Aug 2016 15:28, "Richard W.M. Jones" <rjo...@redhat.com <mailto:rjo...@redhat.com>> wrote:

    On Wed, Aug 10, 2016 at 09:45:52AM +0300, Shahar Havivi wrote:
    > On 10.08.16 06:45, Anantha Raghava wrote:
    > > Hi,
    > >
    > > I even attempted to run command virsh -c
    xen+ssh://root@xenhost and I get
    > > error "/*error: End of file reading data: sh: nc: command not
    found:
    > > Input/output error"*/
    > First you need to be able to login via virsh (before trying to
    import via
    > oVirt).
    >
    > I never encounter this error before,
    > I guess that nc is netcat...,
    > try to install nmap-ncat:
    > $ dnf info nmap-ncat
    >
    > Adding Richard which may have more input.

    Yes, you need to install 'nc' on the *target* (Xen) machine.

    This is because libvirt's ssh transport uses nc:
    
https://libvirt.org/guide/html/Application_Development_Guide-Architecture-Transports.html
    
<https://libvirt.org/guide/html/Application_Development_Guide-Architecture-Transports.html>

    Rich.

    --
    Richard Jones, Virtualization Group, Red Hat
    http://people.redhat.com/~rjones <http://people.redhat.com/%7Erjones>
    Read my programming and virtualization blog: http://rwmj.wordpress.com
    virt-builder quickly builds VMs from scratch
    http://libguestfs.org/virt-builder.1.html
    <http://libguestfs.org/virt-builder.1.html>


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