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