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libvirt: virsh ssh connection problem to xen domU[Cancelled]
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CaptainBlood
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PostPosted: Sat Nov 20, 2010 8:36 pm    Post subject: libvirt: virsh ssh connection problem to xen domU[Cancelled] Reply with quote

Hi dear all,
I have a xen domU I can ssh connect to as root as well as user :).
This domU can be stopped via virt-manager. i.e. libvirt is at least partially working.
But I have a failure when I try as follows:
Code:
1) as root:
virsh -c xen+ssh://root@xendomu0
root@xendomu0's password:
erreur :server closed connection: nc: using stream socket

erreur :impossible de se connecter à l'hyperviseur
2) as user:
 virsh -c xen+ssh://user@192.168.0.30
Enter passphrase for key '/home/luc/.ssh/id_dsa':
erreur :server closed connection: nc: using stream socket

erreur :impossible de se connecter à l'hyperviseur

Plz note that netcat6 must be installed on the domU because of a call to /usr/bin/nc wjthin the connect process.
Nevertheless, this was not enough to reach success :cry:
Also did allow AllowTcpForwarding and PermitTunnel for the domU sshd, but no improvement.

libvirt USE flags as follows:
Code:
 - - avahi      : Add avahi/Zeroconf support
 - - caps       : Use Linux capabilities library to control privilege
 - - debug      : Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see http://www.gentoo.org/proj/en/qa/backtraces.xml
 - - iscsi      : Allow using an iSCSI remote storage server as pool for disk image storage
 - + json       : Support QEmu 0.13 JSON-based interface, using dev-libs/yajl.
 - + libvirtd   : Builds the libvirtd daemon as well as the client utilities instead of just the client utilities
 - - lvm        : Allow using the Logical Volume Manager (sys-apps/lvm2) as pool for disk image storage
 - + lxc        : Support management of Linux Containers virtualisation (app-emulation/lxc)
 - - macvtap    : Support for MAC-based TAP (macvlan/macvtap). For networking instead of the normal TUN/TAP. It has its advantages and disadvantages. macvtap support requires very new kernels and is currently evolving. Support for this is experimental at best
 - + network    : Enable networking support for guests
 - - nfs        : Allow using Network File System mounts as pool for disk image storage
 + + nls        : Adds Native Language Support (using gettext - GNU locale utilities)
 - - numa       : Use NUMA for memory segmenting via sys-process/numactl
 - - openvz     : Support management of OpenVZ virtualisation (see sys-kernel/openvz-sources)
 - - parted     : Allow using real disk partitions as pool for disk image storage, using sys-block/parted to create, resize and delete them.
 - - pcap       : Support auto learning IP addreses for routing
 - - phyp       : Support management of virtualisation through the PHYP hypervisor protocol.
 - - policykit  : Enable PolicyKit authentication support
 + + python     : Adds support/bindings for the Python language
 - - qemu       : Support management of QEmu virtualisation (one of app-emulation/qemu, app-emulation/qemu-kvm or app-emulation/qemu-spice)
 + + sasl       : Adds support for the Simple Authentication and Security Layer
 - - selinux    : !!internal use only!! Security Enhanced Linux support, this must be set by the selinux profile or breakage will occur
 - - udev       : Enable sys-fs/udev integration (device discovery, power and storage device support, etc)
 - - uml        : Support management of User Mode Linux virtualisation
 - - virtualbox : Support management of VirtualBox virtualisation (one of app-emulation/virtualbox or app-emulation/virtualbox-ose)
 + + xen        : Support management of Xen virtualisation (app-emulation/xen)


Any idea how to solve that issue ?

Thks for your attention.


Last edited by CaptainBlood on Sat Nov 20, 2010 9:05 pm; edited 1 time in total
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CaptainBlood
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Joined: 24 Jan 2010
Posts: 1885

PostPosted: Sat Nov 20, 2010 9:01 pm    Post subject: Reply with quote

After a little thinking my guess I that what I'm trying to do is out of scope of the virt-manager+libvirt concept.
I guess I expected a ssh connection to domU where it should be a connection to dom0 :lol:.
My bad, it's so often like this. first I do the action, then the thinking only afterward.
Maybe I will change one day. At least in my next life I guess :wink:.
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