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