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