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