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