--- title: "#cilium articles | Hashnode" description: "Explore 62 articles tagged #cilium on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/cilium" --- Tag # #cilium 62 posts · 7 followers [Thirumurthi S](https://hashnode.com/@thirumurthi) · [Oct 18](https://hashnode.com/posts/multi-cluster-cilium-clustermesh-demonstrating-active-standby-database-and-active-active-application/6ad551cd6f3c3a1504545398) ### [Multi-cluster Cilium Clustermesh Demonstrating Active-Standby Database and Active-Active Application](https://thirumurthi.hashnode.dev/multi-cluster-cilium-clustermesh-demonstrating-active-standby-database-and-active-active-application?utm_source=hashnode&utm_medium=feed) Demonstrates creating kind multi-cluster with cilium clustermesh to configure Active-Standby database using postgres Zalando operator 32 min read · [thirumurthi.hashnode.dev](https://thirumurthi.hashnode.dev/multi-cluster-cilium-clustermesh-demonstrating-active-standby-database-and-active-active-application?utm_source=hashnode&utm_medium=feed) [Morten Victor Nordbye](https://hashnode.com/@mortennordbye) · [Oct 16](https://hashnode.com/posts/locking-down-your-cluster-rolling-out-cilium-network-policies-without-breaking-everything/6ad202a73f0875d54e95214d) ### [Locking Down Your Cluster: Rolling Out Cilium Network Policies Without Breaking Everything](https://mortennordbye.hashnode.dev/locking-down-your-cluster-rolling-out-cilium-network-policies-without-breaking-everything?utm_source=hashnode&utm_medium=feed) Rolling out CiliumNetworkPolicies without breaking traffic: audit mode with Hubble, then default-deny, and the gotchas on the way. 16 min read · [mortennordbye.hashnode.dev](https://mortennordbye.hashnode.dev/locking-down-your-cluster-rolling-out-cilium-network-policies-without-breaking-everything?utm_source=hashnode&utm_medium=feed) [Amaresh Pelleti](https://hashnode.com/@amareswer) · [Oct 15](https://hashnode.com/posts/cilium-mtls-ztunnel-sidecar-free-encryption-explained/6ad0cce050d1070eb7610977) ### [Cilium mTLS ztunnel: Sidecar-Free Encryption Explained](https://devtoolhub.hashnode.dev/cilium-mtls-ztunnel-sidecar-free-encryption-explained?utm_source=hashnode&utm_medium=feed) Originally published on DevToolHub. Cilium mTLS ztunnel doesn't need a SPIRE server — and that's actually the second-biggest news here. The bigger story: Cilium's older, SPIRE-based "Mutual Authentic 7 min read · [devtoolhub.hashnode.dev](https://devtoolhub.hashnode.dev/cilium-mtls-ztunnel-sidecar-free-encryption-explained?utm_source=hashnode&utm_medium=feed) [George Ezejiofor](https://hashnode.com/@georgeezejiofor) · [Oct 12](https://hashnode.com/posts/cilium-hubble-microservice-traffic-flow-ebpf/6acd45604ca43fb637c06c76) ### [Cilium Hubble on RKE2: Microservice Traffic Observability (Seeing the Invisible)](https://georgeezejiofor.com/cilium-hubble-microservice-traffic-flow-ebpf?utm_source=hashnode&utm_medium=feed) Cilium Hubble on RKE2: Microservice Traffic Observability (Seeing the Invisible) 19 min read · [georgeezejiofor.com](https://georgeezejiofor.com/cilium-hubble-microservice-traffic-flow-ebpf?utm_source=hashnode&utm_medium=feed) [Jayakumar Sakthivel](https://hashnode.com/@JayakumarS) · [Sep 11](https://hashnode.com/posts/tetragon-part-1/6aa41a4489d2d08056d5888d) ### [Tetragon: Kubernetes Runtime Security at the Kernel Level — Theory and Architecture](https://cloudwithjk.hashnode.dev/tetragon-part-1?utm_source=hashnode&utm_medium=feed) How Cilium's Tetragon uses eBPF to enforce security policies where no container can escape — inside the Linux kernel itself 15 min read · [cloudwithjk.hashnode.dev](https://cloudwithjk.hashnode.dev/tetragon-part-1?utm_source=hashnode&utm_medium=feed) [Manu Shukla](https://hashnode.com/@mr-manushukla) · [Aug 24](https://hashnode.com/posts/aks-ebpf-host-routing-hit-ga-on-24-august-2026-and-its-enable-doc-still-says-rollout-may-disrupt-con/6a8cbb566298d78070bef5c9) ### [AKS eBPF host routing hit GA on 24 August 2026 and its enable doc still says rollout may disrupt connections](https://ecorpit.hashnode.dev/aks-ebpf-host-routing-hit-ga-on-24-august-2026-and-its-enable-doc-still-says-rollout-may-disrupt-con?utm_source=hashnode&utm_medium=feed) AKS eBPF host routing hit GA on 24 August 2026 and its enable doc still says rollout may disrupt connections Summary. Microsoft marked eBPF host routing in Advanced Container Networking Services (ACNS 13 min read · [ecorpit.hashnode.dev](https://ecorpit.hashnode.dev/aks-ebpf-host-routing-hit-ga-on-24-august-2026-and-its-enable-doc-still-says-rollout-may-disrupt-con?utm_source=hashnode&utm_medium=feed) [abhishek pareek](https://hashnode.com/@abhishek-pareek) · [Jul 13](https://hashnode.com/posts/from-the-vault-how-snat-turned-udp-into-a-stateful-protocol/6a554e5ae95069fc5f17f71f) ### [From The Vault: How SNAT Turned UDP Into a Stateful Protocol](https://abhishekpareek.dev/from-the-vault-how-snat-turned-udp-into-a-stateful-protocol?utm_source=hashnode&utm_medium=feed) Cilium eBPF connection tracking, and how SNAT quietly turns stateless traffic into stateful 6 min read · [abhishekpareek.dev](https://abhishekpareek.dev/from-the-vault-how-snat-turned-udp-into-a-stateful-protocol?utm_source=hashnode&utm_medium=feed) [Jayakumar Sakthivel](https://hashnode.com/@JayakumarS) · [Jul 9](https://hashnode.com/posts/cilium-ebpf-k8s/6a4f3000baf02b4b9d8e4a04) ### [How Cilium Replaces iptables with eBPF — And Why It Makes Kubernetes Security Smarter](https://cloudwithjk.hashnode.dev/cilium-ebpf-k8s?utm_source=hashnode&utm_medium=feed) A deep dive into how Cilium leverages eBPF to move beyond iptables, enforce identity-based network policies, and bring intelligent security to Kubernetes 13 min read · [cloudwithjk.hashnode.dev](https://cloudwithjk.hashnode.dev/cilium-ebpf-k8s?utm_source=hashnode&utm_medium=feed) [Mateen Anjum](https://hashnode.com/@mateenali66) · [Jul 1](https://hashnode.com/posts/multi-cloud-kubernetes-federation-with-cilium-clustermesh-a-production-case-study/6a459383da0f0b76afee1762) ### [Multi-Cloud Kubernetes Federation with Cilium ClusterMesh: A Production Case Study](https://mateenali66.hashnode.dev/multi-cloud-kubernetes-federation-with-cilium-clustermesh-a-production-case-study?utm_source=hashnode&utm_medium=feed) How a fintech platform unified EKS, GKE, and AKS under a single control plane, cut RTO from 22 minutes to 47 seconds, and zeroed out data-residency audit findings. 9 min read · [mateenali66.hashnode.dev](https://mateenali66.hashnode.dev/multi-cloud-kubernetes-federation-with-cilium-clustermesh-a-production-case-study?utm_source=hashnode&utm_medium=feed) [NaveenKumar VR](https://hashnode.com/@vrnaveenkr) · [May 17](https://hashnode.com/posts/kubernetes-networking-tools-a-layer-by-layer-guide-to-what-fits-where/6a098d973104e2aff07641a2) ### [Kubernetes Networking Tools: A Layer-by-Layer Guide to What Fits Where](https://claybrainer.com/kubernetes-networking-tools-a-layer-by-layer-guide-to-what-fits-where?utm_source=hashnode&utm_medium=feed) Stop getting lost in the K8s networking soup. Learn exactly how traffic flows and where tools like Ingress, CNIs, and Service Meshes actually fit in. 11 min read · [claybrainer.com](https://claybrainer.com/kubernetes-networking-tools-a-layer-by-layer-guide-to-what-fits-where?utm_source=hashnode&utm_medium=feed)