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