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