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