[ovirt-users] oVirt can not connect to KVM Libvirtd

Hi,everyone! butI tried using oVirt to Manage the KVM Libvirtd Server, like this: But,it got error like this: VDSM host1 command GetVmsNamesFromExternalProviderVDS failed: Cannot recv data: Host key verification failed.: Connection reset by peer. Should I configure SSH Host Key ? where and how to config it ? Thanks!