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