Summary: This content discusses Cilium, an open-source, cloud-native solution that uses eBPF technology to provide secure and monitored network connectivity between workloads.
Threat Actor: N/A
Victim: N/A
Key Point :
- Cilium leverages eBPF technology in the Linux kernel to provide secure and monitored network connectivity between workloads.
- eBPF is a technology that allows sandboxed programs to run in a privileged context in the Linux kernel without modifying the kernel source code or loading kernel modules.
- Cilium offers a flat Layer 3 network extending across multiple clusters and supports native routing and overlay modes.
- Cilium can enforce network policies from Layer 3 to Layer 7 using an identity-based security model decoupled from network addressing.
- Cilium provides distributed load balancing for traffic between pods and external services, with scalability using eBPF hash tables.
Cilium is an open-source, cloud-native solution that leverages eBPF technology in the Linux kernel to provide, secure, and monitor network connectivity between workloads.
What is eBPF?
eBPF is a technology originating from the Linux kernel that allows sandboxed programs to run in a privileged context, such as the operating system kernel. It extends the kernel’s capabilities safely and efficiently without modifying the kernel source code or loading kernel modules.
Cilium features
Cilium offers a flat Layer 3 network extending across multiple clusters, supporting native routing and overlay modes. It knows Layer 7 protocols and can enforce network policies from Layer 3 to Layer 7 using an identity-based security model decoupled of network addressing.
Cilium provides distributed load balancing for traffic between pods and to external services, capable of replacing kube-proxy by using eBPF hash tables for nearly unlimited scalability. It also supports advanced features such as integrated ingress and egress gateways, bandwidth management, and service mesh, and offers comprehensive network and security visibility and monitoring.
Cilium is available for free on GitHub.
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