for the TLS certificates between etcd peers to work correctly, a DNS reverse lookup on a pod IP must map back to pod name. If you are using CoreDNS, check the CoreDNS ConfigMap and validate that in-addr.arpa Validate that the IP cache is synchronized correctly by running cilium bpf ipcache list or cilium map get cilium_ipcache. The output must contain pod IPs from local and remote clusters. If this fails: ({ [...] services: (map[k8s.ServiceID]*k8s.Service) (len=2) { (k8s.ServiceID) default/kubernetes: (*k8s.Service) (0xc000cd11d0)(frontend:172.20.0.1/ports= [https]/selector=map[]), (k8s.ServiceID)

for the TLS cer�ficates between etcd peers to work correctly, a DNS reverse lookup on a pod IP must map back to pod name. If you are using CoreDNS, check the CoreDNS ConfigMap and validate that in-addr for the TLS cer�ficates between etcd peers to work correctly, a DNS reverse lookup on a pod IP must map back to pod name. If you are using CoreDNS, check the CoreDNS ConfigMap and validate that in-addr.arpa Endpoint Policy: The endpoint policy object implements the Cilium endpoint enforcement. Using a map to lookup a packets associated iden�ty and policy this layer scales well to lots of endpoints. Depending

for the TLS certificates between etcd peers to work correctly, a DNS reverse lookup on a pod IP must map back to pod name. If you are using CoreDNS, check the CoreDNS ConfigMap and validate that in-addr.arpa Validate that the IP cache is synchronized correctly by running cilium bpf ipcache list or cilium map get cilium_ipcache. The output must contain pod IPs from local and remote clusters. If this fails: ({ [...] services: (map[k8s.ServiceID]*k8s.Service) (len=2) { (k8s.ServiceID) default/kubernetes: (*k8s.Service) (0xc000cd11d0)(frontend:172.20.0.1/ports= [https]/selector=map[]), (k8s.ServiceID)

these new BPF powers. Hubble can answer questions such as: Service dependencies & communication map What services are communicating with each other? How frequently? What does the service dependency for the TLS certificates between etcd peers to work correctly, a DNS reverse lookup on a pod IP must map back to pod name. If you are using CoreDNS, check the CoreDNS ConfigMap and validate that in-addr Validate that the IP cache is synchronized correctly by running cilium bpf ipcache list or cilium map get cilium_ipcache. The output must contain pod IPs from local and remote clusters. If this fails:

these new eBPF powers. Hubble can answer questions such as: Service dependencies & communication map What services are communicating with each other? How frequently? What does the service dependency for the TLS certificates between etcd peers to work correctly, a DNS reverse lookup on a pod IP must map back to pod name. If you are using CoreDNS, check the CoreDNS ConfigMap and validate that in-addr.arpa Validate that the IP cache is synchronized correctly by running cilium bpf ipcache list or cilium map get cilium_ipcache. The output must contain pod IPs from local and remote clusters. If this fails:

these new eBPF powers. Hubble can answer questions such as: Service dependencies & communication map What services are communicating with each other? How frequently? What does the service dependency pods Observability Setting up Hubble Observability Inspecting Network Flows with the CLI Service Map & Hubble UI Network Policy Security Tutorials Identity-Aware and HTTP-Aware Policy Enforcement Locking Cilium. � Next Steps Setting up Hubble Observability Inspecting Network Flows with the CLI Service Map & Hubble UI Identity-Aware and HTTP-Aware Policy Enforcement Setting up Cluster Mesh Installation

these new eBPF powers. Hubble can answer questions such as: Service dependencies & communication map What services are communicating with each other? How frequently? What does the service dependency pods Observability Setting up Hubble Observability Inspecting Network Flows with the CLI Service Map & Hubble UI Network Policy Security Tutorials Identity-Aware and HTTP-Aware Policy Enforcement Locking Cilium. � Next Steps Setting up Hubble Observability Inspecting Network Flows with the CLI Service Map & Hubble UI Identity-Aware and HTTP-Aware Policy Enforcement Setting up Cluster Mesh Installation

技术 在 Linux kernel 3.19 开始被 引入，可在用户态进行 eBPF 程序编程，编译 后，动态加载到内核指定的 hook 点上，以 VM 方式安全运行，其能过通过 map 存储结 构存储数据，能通过 map 同用户态程序交互， 最终实现内核数据进行修改，或者影响内核处 理请求的结果，或者改变内核处理请求的流程。 极大提升了内核处理事件的效率。 截止 linux 5.14 版本，eBPF ��������������� ������������ ������������ ������������ ��������� ��������� user space kernel sockhash map sock_opt sock_opt sk_msg msg_redirect() identity技术应用于网络policy 传统基于 IP 来实现 policy过 滤，不足： • 一条过滤规则可能需要记录诸