ovs ovpn 리눅스설정 dns uprobe net-scripts jaeger-ceph nvcc nvidia-smi x509 yt-dlp vagrant-libvirt ebpf libvirt 도커 레지스트리 쿠버네티스 인증서 BPF vagrant ubuntu ceph klosedstack bpf_trace_printk kubeadm localGPT libvirt-vagrant ceph-osd openvSwitch bind9 도커 docker