Hi My concern is about ovirt node oVirt Node Hypervisor release 2.5.5 (0.1.fc17), iso downloaded from ovirt. I've installed and connect 4 nodes on a manager, and try to migrate a VM between hypervisors. I always fail with error : libvirtError: operation failed: Failed to connect to remote libvirt URI qemu+tls://172.16.6.3/system where 172.0.0.1 is the IP of a nde. I've check on the node and the port 16514 is open. I also test the virsh command to have a better error message : virsh -c tls://172.16.6.3/system error: Unable to import client certificate /etc/pki/CA/cacert.pem I've checked the cert file on the ovirt node and found it was empty, and that on all nodes install from the Ovirt ISO it is empty I also checked /config/etc/pki/CA/cacert.pem, which is also empty. On a vdsm node install from package on fedora17, it works. ls -al /etc/pki/CA/cacert.pem lrwxrwxrwx. 1 root root 30 18 janv. 14:30 /etc/pki/CA/cacert.pem -> /etc/pki/vdsm/certs/cacert.pem And the cert is good. I've seen no bug report regarding the feature... Kevin -- Kevin Mazière Responsable Infrastructure Alter Way – Hosting 1 rue Royal - 227 Bureaux de la Colline 92213 Saint-Cloud Cedex Tél : +33 (0)1 41 16 38 41 Mob : +33 (0)7 62 55 57 05 http://www.alterway.fr