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