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