[libvirt-users] error: authentication failed: Authorization requires authentication but no agent is available

I ran into this error. Any way to fix it? [vmcuser@rhel60h207kvm .ssh]$ virsh -c qemu+ssh:// vmcuser(a)9.10.110.241/system list --all error: authentication failed: Authorization requires authentication but no agent is available. error: failed to connect to the hypervisor Here is my settings different from default: [root@rhel60e201c libvirt]# diff libvirtd.conf libvirtd.conf.old 81c81 < unix_sock_group = "vmcuser" --- 88c88 < unix_sock_ro_perms = "0777" --- 98c98 < unix_sock_rw_perms = "0770" --- 129c129 < auth_unix_ro = "none" --- [root@rhel60e201c libvirt]# diff qemu.conf qemu.conf.old 151c151 < user = "vmcuser" --- 154c154 < group = "vmcuser" --- Thanks. --Yih