[Users] virsh/virt-manager access on nodes.

Hi Folks, I was trying to use virt-manager on one of the hosts being managed by the ovirt-manager. It asks for some authentication to connect to libvirt. I get the same thing when I tried to connect via virsh.As I understand , VDSM acquires a lock over libvirt. But is it possible to connect to libvirt (may be only read-only) ?. What authentication does it require ? how do I get the credentials. ? -- Regards, Rahul =======================================================