[Cilium](https://github.com/cilium/cilium) is an open-source software for providing and transparently securing network connectivity and load-balancing between application workloads such as application containers or processes. Cilium operates at Layer 3/4 to provide traditional networking and security services as well as at Layer 7 to protect and secure use of modern application protocols such as HTTP, gRPC and Kafka. Cilium is integrated into common orchestration frameworks such as Kubernetes. A new Linux kernel technology called [eBPF](https://ebpf.io) is at the foundation of Cilium. It supports dynamic insertion of eBPF bytecode into the Linux kernel at various integration points such as network I/O, application sockets and tracepoints to implement security, networking and visibility logic.
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